Door operating apparatus
United States Patent 3161909
US Patent References:
/0359223.html
- - 0359223

/1291605.html
- - 1291605

Door holder
- - 1508466

Screen-door closer
- - 1662395


Inventors:
Leopold, Strauss
Publication Date:
12/22/1964
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Assignee:
Leopold, Strauss
Primary Class:
16/70
Other Classes:
16/49, 292/341.170
International Classes:
E05D11/10; E05F3/02; E05F3/22; E05D11/00; E05F3/00