Cellulose sponges
United States Patent 2880726
US Patent References:
Process of making artificial sponges
- - 1611056

Tampon
- - 2254272

Artificial structure
- - 2295823

Viscose solution
- - 2341509

Manufacture of artificial sponges
- - 2706159


Inventors:
Stieg, Fred B.
Publication Date:
04/07/1959
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Assignee:
Stieg, Fred B.
Primary Class:
604/369
Other Classes:
604/904, 604/375, 106/163.010, 106/122
International Classes:
A61F13/20