Binder for loose sheets or the like
United States Patent 1793520

Inventors:
Paul, Siptrott
Publication Date:
02/24/1931
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Assignee:
Paul, Siptrott
Primary Class:
24/346
Other Classes:
24/555, 248/316.700, 24/700, 24/DIG.028, 24/556, 24/552, 24/67R, 281/46, 248/302, 24/67.900
International Classes:
B42F1/08; B42F1/00