Control device having an internal electric or voltage source

Details Control device having an internal electric or voltage source Control device having an internal electric or voltage source

1981-03-16

1982-10-26

Griffin, Donald A.

354354, G03B 1700, H01R 1362

Patent

active

043558763

ABSTRACT:
A control device, particularly for use as a power supply for photographic equipment, having an internal power supply connectable to a current consumer of the control device by means of a plug and coupling, to which optionally an external power supply may be connected by a plug member the connection of which effectively disconnects the internal power supply.

REFERENCES:
patent: 3640623 (1972-02-01), Florsheim et al.
patent: 3917372 (1975-11-01), Selinko

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