Inventor
SHAFER JAMES E
US9 patents
⚠️ This page may combine multiple inventors who share the name “SHAFER JAMES E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
METROFONE INC
4 patentsUS4737975AApr 12, 1988
Programmable system for interfacing a standard telephone set with a radio transceiver
METROFONE INC304 citations97
US4922517AMay 1, 1990
System for interfacing a standard telephone set with a radio transceiver
METROFONE INC217 citations96
US4775997AOct 4, 1988
System for interfacing a standard telephone set with a radio transceiver
METROFONE INC276 citations96
US4658096AApr 14, 1987
System for interfacing a standard telephone set with a radio transceiver
METROFONE INC301 citations96