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Book- and copyholder
United States Patent 2572731
US Patent References:
Stenographer's note-holder
- - 1384861
Revolving-picture frame
- - 1436544
Bookrest
- - 1483421
Combined notebook stand and vanity case
- - 1488282
Book support
- - 1864807
Inventors:
Raymond, Keith Arthur
Publication Date:
10/23/1951
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Download PDF 2572731
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Assignee:
Raymond, Keith Arthur
Primary Class:
248/457
Other Classes:
248/453, 40/352
International Classes:
A47B19/06
;
A47B19/00
US Patent References:
2219091
Bookrest
2239791
Line guide
2374409
Bookstand