Title:
Window operating and locking mechanism
United States Patent 2114645

Inventors:
Benschoten, William Henry Van
Publication Date:
04/19/1938
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Assignee:
Benschoten, William Henry Van
Primary Class:
49/279
Other Classes:
292/DIG.012, 49/320, 49/341
International Classes:
E05F11/14; E05F11/00