Assignee
TELECASH
FR4 patents
Top patents by PatentIndex Score
US5136644AAug 4, 1992
Portable electronic device for use in conjunction with a screen
TELECASH183 citations97
USD313229SDec 25, 1990
Electronic card for receiving information from a video screen
TELECASH31 citations91
US4910775AMar 20, 1990
Portable electronic device for use in conjunction with a screen
TELECASH93 citations85
USD313410SJan 1, 1991
Electronic card for receiving information from a video screen
TELECASH6 citations72