Assignee

VENDACOPY INC

3 patents

Top patents by PatentIndex Score

US4322613AMar 30, 1982

Method for tamper-proofing magnetic stripe card reader

VENDACOPY INC37 citations87

US4300042ANov 10, 1981

Magnetic stripe card author

VENDACOPY INC26 citations72

US4308941AJan 5, 1982

Logic for coin operated office copy machine vender

VENDACOPY INC5 citations53