Loose-leaf binder
United States Patent 3092400
US Patent References:
/1052531.html
- - 1052531

/1219544.html
- - 1219544

Device for philatelists' use
- - 1987377

Transparent loose-leaf binder
- - 2480917

Sheet protector
- - 2630122


Inventors:
Smith, Thomas R.
Publication Date:
06/04/1963
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Assignee:
William, Jamieson
Primary Class:
281/19.100
Other Classes:
402/14, 402/73, D19/27, 281/31
International Classes:
B42F13/00
US Patent References:
2831706Book or desk file and covers
Foreign References:
GB639898A