Telephone handset

Details Telephone handset Telephone handset

1979-02-09

1980-12-02

Cook, Daryl W.

179179, H04M 102, H04M 103

Patent

active

042373506

ABSTRACT:
The handset consists of two parts, i.e. the smooth upper part and the lower part containing the receptacles for the electro-acoustic transducers. Considering that the various makes of transducers may vary in both their diameters and electric terminals, the annular transducer receptacle is stepped on its inside. For transducers with soldering or plug terminals contact springs are not needed. For transducers having contact surfaces, contact springs are retrofitable in a simple way.

REFERENCES:
patent: 2907836 (1959-10-01), Henrikson et al.
patent: 4130740 (1978-12-01), Cogan
patent: 4163875 (1979-08-01), Cogan

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