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Insulated metal-framed window sash
US 2,877,515 A
Filed
: 11/01/1957
Issued
: 03/17/1959
Est. Priority Date
: 11/01/1957
Status: Expired due to Term
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Current Assignee
Glenn B. Haas
Original Assignee
Glenn B. Haas
Inventors
Haas, Glenn B.
Application Number
US03/693,964
Time in Patent Office
501 Days
Field of Search
US Class Current
52/172
CPC Class Codes
E06B 2003/26334
Contact reducing arrangemen...
E06B 2003/26352
hollow
E06B 2003/26387
Performing extra functions
E06B 2003/26389
Holding sealing strips or f...
E06B 2003/26396
specially adapted for sheet...
E06B 3/26301
with prefabricated insulati...
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