Temperature indicator
United States Patent 2889799

Inventors:
Ralf, Korpman
Publication Date:
06/09/1959
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Assignee:
Ralf, Korpman
Primary Class:
Other Classes:
422/58, 439/488, 252/962, 116/DIG.014, 439/913, 206/459.100
International Classes:
A61B19/02; A61B19/00
US Patent References:
2177627Adhesive sheeting
2490933Temperature indicator