Telephone-signal-actuated disconnect switch

Details Telephone-signal-actuated disconnect switch Telephone-signal-actuated disconnect switch

1990-06-27

1993-08-31

Burke, Wallace R.

Equipment for production, distribution, or transformation of ene

Distribution, modification or control

Switch or casing therefor

D13137, D13142

Patent

active

D03388735

REFERENCES:
patent: D180712 (1957-07-01), Hake
patent: D219657 (1971-01-01), Kahn
patent: D263465 (1982-03-01), Fathi
patent: D292512 (1987-10-01), Hames
patent: D317311 (1991-06-01), Anderson et al.
patent: 2988617 (1961-06-01), Graziosi
patent: 3452252 (1969-06-01), Mapham
patent: 4085996 (1978-04-01), Koslo
patent: 4500160 (1985-02-01), Bertsch
patent: 4743999 (1988-05-01), Hames
patent: 4861286 (1989-08-01), Fosnaugh
Automatic burn-out protector on p. 72 of Product Engineering, May 1978.
Receptacles on p. 424 of Hong Kong Enterprise, vol. 12, 1980
Receptacles on p.C.-5 of Bryant catalog BDB 1504, Jun. 1987.
068TEC telephone light alert on p. 374 of B. A. Pargh catalog.

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