Multi-line telephone set

Details Multi-line telephone set Multi-line telephone set

1986-01-27

1987-12-22

Burke, Wallace R.

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D14 53, D14 52, D14 62

Patent

active

D02933209

REFERENCES:
patent: D267007 (1982-11-01), Chiou
patent: D269089 (1983-05-01), Foggia et al.
patent: D274515 (1984-07-01), Kraemer et al.
patent: D277478 (1985-02-01), Foggia et al.
patent: D280324 (1985-08-01), Endt
patent: D282545 (1986-02-01), Inagi et al.
patent: D282840 (1986-03-01), Marshall
patent: D284079 (1986-06-01), Kita et al.
patent: D285921 (1986-09-01), Beese
patent: D286404 (1986-10-01), Skigen et al.

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