Title:
Signal device for food package
United States Patent 2951764
Inventors:
Chase, Kenneth J.
Publication Date:
09/06/1960
Export Citation:
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Assignee:
Chase, Kenneth J.
Primary Class:
426/88
Other Classes:
116/206
International Classes:
G01N31/22; G01N31/22
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US Patent References:
2560537Defrosting indicator
2490933Temperature indicator
2460215Telltale for frozen food packages