Inventor
GUMB BEVERLEY W
CA13 patents
Patents
13 patentsUS4385209AMay 24, 1983
Adjustment of operating characteristics of a telephone transmitter including an electret transducer
NORTHERN TELECOM LTD96 citations93
US5187743AFeb 16, 1993
Telephone base with a display unit
NORTHERN TELECOM LTD53 citations92
US5172805ADec 22, 1992
Pushbutton and carrying member combination for operating an electronic switching device
NORTHERN TELECOM LTD51 citations92
US5121427AJun 9, 1992
Telephone base members and support members
NORTHERN TELECOM LTD64 citations92
US4773091ASep 20, 1988
Telephone handset for use in noisy locations
NORTHERN TELECOM LTD33 citations91
US4594478AJun 10, 1986
Transmitter assembly for a telephone handset
NORTHERN TELECOM LTD47 citations90
US5086466AFeb 4, 1992
Telephone base structures for stabilizing upon support surfaces
NORTHERN TELECOM LTD25 citations89
US4731833AMar 15, 1988
Low profile circuit board mounted telephone jack
NORTHERN TELECOM LTD27 citations89
US4529846AJul 16, 1985
Dynamic telephone receiver with magnetic shunt
NORTHERN TELECOM LTD20 citations79
US4188513AFeb 12, 1980
Electret microphone with simplified electrical connections by printed circuit board mounting
NORTHERN TELECOM LTD24 citations76
US4638116AJan 20, 1987
Masking of holes in circuit patterns on circuit boards prior to flow soldering
NORTHERN TELECOM LTD13 citations73
US4154990AMay 15, 1979
Telephone set base member with bean bag attachment
NORTHERN TELECOM LTD5 citations62
US4776009AOct 4, 1988
Telephone handset having housings assembled without mechanical fasteners
NORTHERN TELECOM LTD6 citations55