Title:
Casement window operator and lock
Document Type and Number:
United States Patent 1916562

Inventors:
Drummond, William E.
Publication Date:
07/04/1933
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Assignee:
Drummond, William E.
Primary Class:
49/246
Other Classes:
49/192, 49/356
International Classes:
E05C17/18; E05C17/00




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