Window-shade roller
United States Patent 1591104

Inventors:
Robinson, William A.
Publication Date:
07/06/1926
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Assignee:
Robinson, William A.
Primary Class:
160/298
Other Classes:
296/143, 160/321, 160/307, 24/115R
International Classes:
E06B9/50; E06B9/78; E06B9/24; E06B9/56