United States Patent 2735737
US Patent References:
/0966244.html
- - 0966244

/1108799.html
- - 1108799

Drawing stand
- - 2197359


Publication Date:
02/21/1956
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Primary Class:
108/50.170
Other Classes:
5/947, 108/135, 108/134, 225/6, 312/237, 5/424, 5/2.100, 211/150, 5/488
International Classes:
A47D5/00