Title:
Automatic doorstop
Document Type and Number:
United States Patent 1944382
Inventors:
Wecker, Andrew J.
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Publication Date:
01/23/1934
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Referenced by:
Export Citation:
Assignee:
Wecker, Andrew J.
Primary Class:
Other Classes:
292/183, 292/171
International Classes:
E05B63/20; E05B63/00