Title:
Door-control device
Document Type and Number:
United States Patent 1478856

Inventors:
Hockenberry, James H.
Publication Date:
12/25/1923
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Assignee:
Hockenberry, James H.
Primary Class:
49/113
Other Classes:
292/DIG.012
International Classes:
E05F11/04; E05F11/00




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