Patents Assigned to Hans Friedrich Hefendehl
  • Patent number: 4991332
    Abstract: An information-bearing and direction indicating sign is described having at least one rectangular information carrier provided with printing, a pictogram or a direction-indicating symbol and a frame holding the exchangable information carrier releasably. The frame includes at least two longitudinally-extended members running parallel to each other, which are provided with a plurality of opposing longitudinally-running receiving grooves, in which the information carrier or carriers are held edgewise and are easily removable. The longitudinally-extended members can have a connecting piece at each end for attachment to a wall surface. Means for easily holding or releasing one or more of the information carriers may be provided in the opposing receiving grooves in adjacent pairs of longitudinally-extending members. The longitudinally-extended members can be rods or bars and the connecting pieces can be formed by angular pieces which engage in mounting pieces permanently attached to the wall surface.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: February 12, 1991
    Assignee: Hans Friedrich Hefendehl
    Inventor: Bernd Brussing
  • Patent number: D259456
    Type: Grant
    Filed: August 15, 1978
    Date of Patent: June 9, 1981
    Assignee: Hans Friedrich Hefendehl
    Inventors: Walter Zeischegg, Bernd Brussing
  • Patent number: D292957
    Type: Grant
    Filed: May 13, 1985
    Date of Patent: December 1, 1987
    Assignee: Hans Friedrich Hefendehl
    Inventor: Bernd Brussing
  • Patent number: D299011
    Type: Grant
    Filed: March 13, 1986
    Date of Patent: December 20, 1988
    Assignee: Hans Friedrich HEFENDEHL
    Inventor: Bernd Br/u/ ssing
  • Patent number: D303873
    Type: Grant
    Filed: April 24, 1986
    Date of Patent: October 10, 1989
    Assignee: Hans Friedrich Hefendehl
    Inventor: Bernd Brussing
  • Patent number: D324122
    Type: Grant
    Filed: May 11, 1990
    Date of Patent: February 18, 1992
    Assignee: Hans Friedrich Hefendehl
    Inventor: Bernd Brussing
  • Patent number: D324281
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: February 25, 1992
    Assignee: Hans Friedrich Hefendehl
    Inventor: Bernd Brussing
  • Patent number: D325222
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: April 7, 1992
    Assignee: Hans Friedrich Hefendehl
    Inventor: Bernd Brussing
  • Patent number: D328510
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: August 4, 1992
    Assignee: Hans Friedrich Hefendehl
    Inventor: Bernd Brussing
  • Patent number: D328760
    Type: Grant
    Filed: May 11, 1990
    Date of Patent: August 18, 1992
    Assignee: Hans Friedrich Hefendehl
    Inventor: John E. Knox
  • Patent number: D329556
    Type: Grant
    Filed: May 23, 1990
    Date of Patent: September 22, 1992
    Assignee: Hans Friedrich Hefendehl
    Inventor: Bernd Brussing
  • Patent number: D331423
    Type: Grant
    Filed: July 9, 1991
    Date of Patent: December 1, 1992
    Assignee: Hans Friedrich Hefendehl
    Inventor: Bernd Brussing
  • Patent number: D332628
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: January 19, 1993
    Assignee: Hans Friedrich Hefendehl
    Inventor: Bernd Brussing
  • Patent number: D332630
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: January 19, 1993
    Assignee: Hans Friedrich Hefendehl
    Inventor: Bernd Brussing
  • Patent number: D332850
    Type: Grant
    Filed: February 6, 1991
    Date of Patent: January 26, 1993
    Assignee: Hans Friedrich Hefendehl
    Inventor: Bernd Brussing
  • Patent number: D335307
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: May 4, 1993
    Assignee: Hans Friedrich Hefendehl
    Inventor: Bernd Brussing
  • Patent number: D335729
    Type: Grant
    Filed: October 3, 1990
    Date of Patent: May 18, 1993
    Assignee: Hans Friedrich Hefendehl
    Inventor: Bernd Brussing
  • Patent number: D336493
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: June 15, 1993
    Assignee: Hans Friedrich HEFENDEHL
    Inventor: Bernd Brussing
  • Patent number: D336926
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: June 29, 1993
    Assignee: Hans Friedrich Hefendehl
    Inventor: Bernd Brussing
  • Patent number: D345641
    Type: Grant
    Filed: July 6, 1992
    Date of Patent: March 29, 1994
    Assignee: Hans Friedrich Hefendehl
    Inventor: Bernd Brussing