Telephone transferring switchboard

Details Telephone transferring switchboard Telephone transferring switchboard

1990-06-11

1991-09-24

Fay, Jr., Horace B.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

D14151

Patent

active

D03202119

REFERENCES:
patent: D273109 (1984-03-01), Breger
patent: D273370 (1984-04-01), Eilert
patent: D293437 (1987-12-01), Hoshino et al.
patent: D293790 (1988-01-01), Hillmer
patent: D298132 (1988-10-01), Hickling
patent: D300139 (1989-03-01), Nishio
patent: D300320 (1989-03-01), Watanabe et al.
patent: D304564 (1989-11-01), Kido et al.
patent: D310524 (1990-09-01), Utsuki et al.
No. 755159 published Feb. 15, 1989--Sharp Corporation.
No. 694968 published Dec. 16, 1986--Fujitsu Limited.
Similar-Design No. 694968-1 published Nov. 9, 1988--Fujitsu Limited.

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