Inter-call device for telephone sets

Details Inter-call device for telephone sets Inter-call device for telephone sets

1986-06-24

1988-03-01

Gandy, James M.

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D14 52, D14 59

Patent

active

D02944995

REFERENCES:
patent: D212230 (1968-09-01), Kamp
patent: D249513 (1978-09-01), Zierhut
patent: D250647 (1978-12-01), Breger
patent: D250892 (1979-01-01), Renard
patent: D254436 (1980-03-01), Bakal
patent: D266086 (1982-09-01), Foggia et al.
patent: D267879 (1983-02-01), Keely et al.
patent: D272349 (1984-01-01), Dickinson
patent: D273954 (1984-05-01), Bee
patent: D276156 (1984-10-01), Goodin et al.
patent: D282745 (1986-02-01), Brown
patent: 4513746 (1985-04-01), Aranyi et al.
patent: 4522327 (1985-06-01), Kortholl et al.
patent: 4530453 (1985-07-01), Green

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