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Air blender
US 2,991,937 A
Filed
: 01/20/1959
Issued
: 07/11/1961
Est. Priority Date
: 01/20/1959
Status: Expired due to Term
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Current Assignee
James D. Bottorf
,
Robert G. Miner
Original Assignee
James D. Bottorf
,
Robert G. Miner
Inventors
Bottorf, James D.
,
Miner, Robert G.
Application Number
US03/787,986
Time in Patent Office
903 Days
Field of Search
US Class Current
236/13
CPC Class Codes
F24F 3/0522
in which warm or cold air f...
Y10T 137/7793
With opening bias [e.g., pr...
Y10T 137/87684
Valve in each inlet
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