Patents Assigned to North American Foreign Trading Corporation
  • Electrical educational device
    Patent number: 4464124
    Abstract: A magnetic tape player has a stereo playback head for reproducing information from adjacent channels on a magnetic tape on which there is recorded a series of questions and answers in successive blocks. In a first portion of each block a given question and a plurality of possible answers are recorded in both channels, in a second portion of the block a coded indication of the correct answer to the question is recorded in one channel, and in a third portion of the block a correct indication is recorded in one channel and an incorrect indication is recorded in the other channel. The second portion of the block is marked by a first tone to indicate the start of the decision time during which one of a plurality of answer buttons is to be depressed to select an answer and the third portion of the block is marked by a second tone to indicate the end of the decision time.
    Type: Grant
    Filed: April 1, 1982
    Date of Patent: August 7, 1984
    Assignee: North American Foreign Trading Corporation
    Inventors: Hugo Romero, Avi Arad, Dietmar Nagel, Melvin Kennedy
  • Quizzer toy
    Patent number: D271029
    Type: Grant
    Filed: January 13, 1981
    Date of Patent: October 18, 1983
    Assignee: North American Foreign Trading Corporation
    Inventors: Dietmar Nagel, Andrew Lowinger, Peter Roegner
  • Preprogrammed toy sound generator
    Patent number: D271030
    Type: Grant
    Filed: January 13, 1981
    Date of Patent: October 18, 1983
    Assignee: North American Foreign Trading Corporation
    Inventors: Dietmar Nagel, Andrew Lowinger, Peter Roegner
  • Teaching machine
    Patent number: D276733
    Type: Grant
    Filed: January 13, 1981
    Date of Patent: December 11, 1984
    Assignee: North American Foreign Trading Corporation
    Inventors: Dietmar Nagel, Andrew Lowinger, Peter Roegner
  • Desk set
    Patent number: D303398
    Type: Grant
    Filed: July 18, 1986
    Date of Patent: September 12, 1989
    Assignee: North American Foreign Trading Corporation
    Inventor: Maurice Lowinger
  • Combination cordless telephone handset and base
    Patent number: D334747
    Type: Grant
    Filed: December 26, 1991
    Date of Patent: April 13, 1993
    Assignee: North American Foreign Trading Corporation
    Inventor: George P. Roegner
  • Combination cordless telephone handset and base
    Patent number: D334748
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: April 13, 1993
    Assignee: North American Foreign Trading Corporation
    Inventor: George P. Roegner
  • Combination cordless telephone handset and base
    Patent number: D335289
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: May 4, 1993
    Assignee: North American Foreign Trading Corporation
    Inventor: George P. Roegner
  • Combination cordless telephone handset and base
    Patent number: D335494
    Type: Grant
    Filed: December 26, 1991
    Date of Patent: May 11, 1993
    Assignee: North American Foreign Trading Corporation
    Inventor: George P. Roegner
  • Combined cordless handset telephone and base therefor
    Patent number: D335666
    Type: Grant
    Filed: December 26, 1991
    Date of Patent: May 18, 1993
    Assignee: North American Foreign Trading Corporation
    Inventor: George P. Roegner
  • Combination cordless telephone handset and base
    Patent number: D335878
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: May 25, 1993
    Assignee: North American Foreign Trading Corporation
    Inventor: George P. Roegner
  • Housing for base of telephone
    Patent number: D339132
    Type: Grant
    Filed: March 11, 1992
    Date of Patent: September 7, 1993
    Assignee: North American Foreign Trading Corporation
    Inventor: George P. Roegner
  • Housing for base of telephone
    Patent number: D339133
    Type: Grant
    Filed: March 11, 1992
    Date of Patent: September 7, 1993
    Assignee: North American Foreign Trading Corporation
    Inventor: George P. Roegner
  • Housing for base of telephone
    Patent number: D347842
    Type: Grant
    Filed: March 11, 1992
    Date of Patent: June 14, 1994
    Assignee: North American Foreign Trading Corporation
    Inventor: George P. Roegner
  • Cordless telephone handset
    Patent number: D361996
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: September 5, 1995
    Assignee: North American Foreign Trading Corporation
    Inventor: George P. Roegner
  • Cordless telephone handset
    Patent number: D361997
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: September 5, 1995
    Assignee: North American Foreign Trading Corporation
    Inventor: George P. Roegner
  • Housing for base of a cordless telephone
    Patent number: D361999
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: September 5, 1995
    Assignee: North American Foreign Trading Corporation
    Inventor: George P. Roegner
  • Housing for base of a cordless telephone with speakerphone
    Patent number: D362001
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: September 5, 1995
    Assignee: North American Foreign Trading Corporation
    Inventor: George P. Roegner