Electronic intercommunication unit

Details Electronic intercommunication unit Electronic intercommunication unit

1983-04-29

1985-07-02

Burke, Wallace R.

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D14 52, D14 92

Patent

active

D02794713

REFERENCES:
patent: D174406 (1955-04-01), Adler
patent: D199677 (1964-12-01), Mattingly
patent: D210026 (1968-01-01), Kahn
patent: D211092 (1968-05-01), Kahn
patent: D255444 (1980-06-01), Houlihan
patent: D255901 (1980-07-01), Tokiyama
patent: D259422 (1981-06-01), Taylor
patent: D264716 (1982-06-01), Nakajima
patent: D274518 (1984-07-01), Doodson
patent: D275101 (1984-08-01), Read
Talk-O-Products Brochure "Intercommunication Systems": pp. 3-5.

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