Patents Assigned to Charles Graham
  • Patent number: 4326123
    Abstract: The invention relates to a device that can read numerical information from a credit card, interfaced with a general purpose digital computer for automatic credit card validation and/or dialing approaches to include through the computer charge and billing information in conjunction with the credit card utilized. The entire system is automatic and eliminates telephone operator intercept. It can be utilized in conjunction with an automatic telephone dialing equipment. There are unique characteristics in the credit card itself which might be either visual, mechanical, or magnetically validated, and wherein the validation equipment preferably has no moving parts to eliminate breakdown problems.
    Type: Grant
    Filed: February 22, 1980
    Date of Patent: April 20, 1982
    Assignee: Charles Graham
    Inventor: Harry L. Hosterman