Modem/telephone handset cord adaptor

Details Modem/telephone handset cord adaptor Modem/telephone handset cord adaptor

1989-12-08

1991-10-22

Bradley, Paula A.

Electrical connectors

With insulation other than conductor sheath

Plural-contact coupling part

379442, H01R 2700

Patent

active

050591410

ABSTRACT:
An adaptor for connecting the conventional plug which connects a telephone handset to a modem so that a computer connected to the modem may be operably connected to the transmitter circuitry associated with any conventional dual tone multiple frequency (DTMF) telephone.

REFERENCES:
patent: 3736379 (1973-05-01), Kagan
patent: 3934088 (1976-01-01), Marino
patent: 4295702 (1981-10-01), Snyder
patent: 4367374 (1983-01-01), Serrano
patent: 4395590 (1983-07-01), Pierce et al.
patent: 4444451 (1984-04-01), Myers
patent: 4493951 (1985-01-01), Sanderson et al.
patent: 4543450 (1985-09-01), Brandt
patent: 4611875 (1986-09-01), Clarke et al.
patent: 4648682 (1987-03-01), Tubbs
patent: 4673228 (1987-06-01), Ditzig
patent: 4907267 (1990-03-01), Gutzmer
Phoneflex, TVMP Inc., 5 pp. 6/1988.
One page of advertising (undated) "Adeline and Insta-Jack", #27 PC Magazine, Feb. 27, 1990.

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