Window ventilating device
United States Patent 1960434

Inventors:
Doscher, Carl F.
Publication Date:
05/29/1934
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Assignee:
Doscher, Carl F.
Primary Class:
160/11
Other Classes:
160/388, 160/390, 160/23.100, 160/389, 160/387
International Classes:
A47H5/02; E06B9/54; A47H5/00; E06B9/52