ATMOSPHERE SAMPLING DEVICE
United States Patent 3540261

Inventors:
Scoggins, Max F.
Publication Date:
11/17/1970
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Assignee:
CENTER FOR THE ENVIRONMENT & M
Primary Class:
73/863.250
Other Classes:
73/28.010, 73/863.310, 73/23.200
International Classes:
G01N1/22; G01N1/24; G01N1/24
US Patent References:
3433054MACHINE FOR TEST SMOKING CIGARETTES




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