Selective smoke detector
United States Patent 2033466
Inventors:
Grant Jr., Harry Campbell
Publication Date:
03/10/1936
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Export Citation:
Assignee:
KIDDE & CO WALTER
Primary Class:
Other Classes:
55/DIG.034, 137/625.410, 454/342, 340/630, 422/83
International Classes:
F16F1/04; G01N21/53; G08B17/103; G01N21/47