Telephone circuit connecting device

Details Telephone circuit connecting device Telephone circuit connecting device

1988-01-15

1991-03-19

Fay, Jr., Horace B.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

D14240

Patent

active

D03155668

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patent: D276605 (1984-12-01), Neuwirth
patent: D276606 (1984-12-01), Neuwirth
patent: D285433 (1986-09-01), De Luca et al.
patent: D297232 (1988-08-01), Gazzo
patent: D297531 (1988-09-01), De Luca
patent: 1371874 (1921-03-01), Ditch et al.
patent: 4012096 (1977-03-01), De Luca et al.
patent: 4658418 (1987-04-01), Rodgers

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