Title:
Bookholder
United States Patent 3351312
US Patent References:
/1083764.html
- - 1083764

Bed reader
- - 1916667

Copyholder
- - 2538318


Inventors:
Ballas, William E.
Publication Date:
11/07/1967
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Assignee:
Ballas, William E.
Primary Class:
248/448
Other Classes:
248/447.100, 248/447.200, 248/451, 5/507.100, 248/454, D19/91
International Classes:
A47B23/00
Foreign References:
GB524002A
IT543073B