Base and stackable elements having cooperating electrical contact means
United States Patent 3237341
US Patent References:
/1236234.html
- - 1236234

Game apparatus
- - 2013958

Adhesive tape
- - 2032845


Inventors:
Janning, John L.
Publication Date:
03/01/1966
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Assignee:
Roger, Dybvig S.
Primary Class:
446/91
Other Classes:
273/238, 439/56, 273/460, 273/454, 40/541
International Classes:
F21S8/00; F21V23/06; F21V23/00
Foreign References:
DE613379C