Metal frame constructions
United States Patent 2736403
US Patent References:
Window-sash construction
- - 1637723

Sash construction
- - 2004727

Joint construction
- - 2114617

Method and means for fastening
- - 2200227


Inventors:
Gwynne, Jacob M.
Publication Date:
02/28/1956
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Assignee:
Gwynne, Jacob M.
Primary Class:
52/645
Other Classes:
52/656.600, D25/52, D25/121
International Classes:
E06B3/96