Telephone system keypad attachment stand or similar article

Details Telephone system keypad attachment stand or similar article Telephone system keypad attachment stand or similar article

1984-11-30

1986-10-14

Burke, Wallace R.

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D14 62, D14 66, D14 52

Patent

active

D02861518

REFERENCES:
patent: D238186 (1975-12-01), Kramer et al.
patent: D254493 (1980-03-01), Grosso et al.
patent: 3928732 (1975-12-01), Simon et al.
patent: 4090242 (1978-05-01), Martin
Telrad Key by Electronic Key Telephone System, Brochure shows Modules on pp. 2 and 4 (DDS etc.)
Burroughs "DEX" Controller Brochure shows Keys with Concave Surfaces.

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