Switch having a matrix of relays

Details Switch having a matrix of relays Switch having a matrix of relays

1974-09-20

1976-09-28

Robinson, Thomas A.

H04Q 342

Patent

active

039833313

ABSTRACT:
Switch comprising a matrix of relays, each providing a connection point between a horizontal input and a vertical input, and auxiliary control relays, at least one per vertical input, fulfilling the horizontal and vertical input control functions and the holding of the vertical input control and the releasing of the horizontal input control.

REFERENCES:
patent: 2578701 (1951-12-01), Hecht
patent: 3366849 (1968-01-01), De Raedt et al.
patent: 3621147 (1971-11-01), Perucca

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