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Warm air heating device
US 2,800,069 A
Filed
: 02/10/1954
Issued
: 07/23/1957
Est. Priority Date
: 02/10/1954
Status: Expired due to Term
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Current Assignee
Melvin P. Smith
Original Assignee
Melvin P. Smith
Inventors
Smith, Melvin P.
Application Number
US03/409,305
Time in Patent Office
1,259 Days
Field of Search
US Class Current
454/287
CPC Class Codes
F24F 13/072
of elongated shape, e.g. be...
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