Title:
Window structure
United States Patent 3090613

Inventors:
Bechtold, Paul E.
Publication Date:
05/21/1963
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Assignee:
Bechtold, Paul E.
Primary Class:
49/325
Other Classes:
D12/183, 52/72, 52/200, 52/66
International Classes:
E04D13/035; E05F15/12; E04D13/03
US Patent References:
2827003Combination skylight and fire vent construction
2832590Casement window operators
2875710Window structure
2887311Door operator and control therefor
2909718Door operating apparatus
2944810Door operating mechanism