1983-02-28
1985-04-23
Schreyer, Stafford D.
1791752C, 1791753R, H04B 346
Patent
active
045131767
ABSTRACT:
Test apparatus for use by a telephone company customer in his own home to determine whether trouble in his phone service originates in his equipment or that of the phone company. The test apparatus includes a multiple position switch and one or more test circuits connected to the switch. The switch knob is normally positioned so that telephone company's wiring junction is connected to the customer's wiring and telephone instruments. If trouble occurs, the switch can be moved to one of several other positions each of which is connected to a different test circuit having a visual or an audible indicator to indicate the source of the trouble.
REFERENCES:
patent: 3814870 (1974-06-01), Miller
patent: 4369341 (1983-01-01), Ahuja
patent: 4413163 (1983-11-01), Basini
patent: 4415778 (1983-11-01), Turner
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