Moisture-sensitive paper and the manufacture thereof
United States Patent 2445586
US Patent References:
/0643084.html
- - 0643084

/0967793.html
- - 0967793

Game device
- - 1866545

Dampness detecting and indicating device
- - 2214354

Dampness detecting and indicating device
- - 2249867


Inventors:
Simons, Francis L.
Publication Date:
07/20/1948
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Assignee:
GEORGE LA MONTE & SON
Primary Class:
503/202
Other Classes:
101/DIG.029, 503/224, 106/150.100, 428/916, 428/478.800, 427/1, 503/205, 428/913, 427/7
International Classes:
A61B5/117; D21H21/46; G01N31/22; D21H21/40
US Patent References:
2250980Indicator package for cements and the like