Title:
Window shade
Document Type and Number:
United States Patent 1539774
Inventors:
Ryuji, Sato
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Publication Date:
05/26/1925
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Referenced by:
Export Citation:
Assignee:
Ryuji, Sato
Primary Class:
Other Classes:
160/241, 160/389
International Classes:
E06B9/66; E06B9/56