Title:
Auxiliary windows
United States Patent 2816632
US Patent References:
/0377987.html
- - 0377987

Frame construction
- - 2654451

Window sash frame structure
- - 2666508


Inventors:
Nardulli, Michael J.
Publication Date:
12/17/1957
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Assignee:
WESTERN ENGINEERING TRUST
Primary Class:
52/656.700
Other Classes:
52/800.140, 52/657, 403/295
International Classes:
E06B3/92; E06B3/968; E06B3/00; E06B3/96
Foreign References:
GB185033A