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Dampness detecting and indicating device
US 2,249,867 A
Filed
: 01/15/1938
Issued
: 07/22/1941
Est. Priority Date
: 01/15/1938
Status: Expired due to Term
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Current Assignee
Marjorie G. Snelling
Original Assignee
Marjorie G. Snelling
Inventors
Snelling, Marjorie G.
Application Number
US02/185,153
Time in Patent Office
1,284 Days
Field of Search
US Class Current
73/335.08
CPC Class Codes
G01N 31/222
for investigating moisture ...
Y10S 435/805
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