Title:
Venetian blind
Document Type and Number:
United States Patent 2283640
Inventors:
Doin, Kwon
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Publication Date:
05/19/1942
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Referenced by:
Export Citation:
Assignee:
Doin, Kwon
Primary Class:
Other Classes:
160/176.10R
International Classes:
E06B9/303; E06B9/28