United States Patent 3028659
Inventors:
Tsing, Chow Wen
Henrich, William H.
Publication Date:
04/10/1962
Assignee:
BOSCH ARMA CORP
Other Classes:
361/805, 361/684, 29/737, 174/254, 174/260, 29/597, 148/DIG.055, 29/847, 324/158.100, 340/14.660
International Classes:
G11C8/04; G11C17/16; G11C17/14