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2215318
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Information
Patent Grant
2215318
References
Source
Patent Number
2,215,318
Date Filed
Not available
Date Issued
Tuesday, September 17, 1940
83 years ago
CPC
F24F13/0245 - Manufacturing or assembly of air ducts; Methods therefor
F16L41/025 - with rectangular cross-section
F24F13/0272 - Modules for easy installation or transport
Y10S138/04 - Air conditioning
Y10T29/49922 - by bending over projecting prongs
US Classifications
285 - Pipe joints or couplings
029 - Metal working
138 - Pipes and tubular conduits
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