Electrical connectors – Energy cell substitution device including plural contacts or...
Patent
1991-10-21
1993-02-16
McGlynn, Joseph H.
Electrical connectors
Energy cell substitution device including plural contacts or...
H01R 1300
Patent
active
051866528
ABSTRACT:
This invention is a plug that could be electrically powered by either a self-contained battery or an external DC electrical source. It can screw connect to many types of formations, or can be connected to an assembly board to use as a chess game or as tutorial facilities.
REFERENCES:
patent: 2352576 (1944-06-01), Triplett
patent: 3392365 (1968-07-01), Locke et al.
patent: 4221454 (1980-09-01), Wong
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