Flexible bags of plastic sheet material
United States Patent 2878849
US Patent References:
/1136138.html
- - 1136138

/1224396.html
- - 1224396

Inner tube and its method of manufacture
- - 1521879

Laundry bag
- - 1564930

Pocket
- - 1787706


Inventors:
Lingenfelter, Daniel J.
Grover, Richard D.
Forbes Jr., Charles A.
Publication Date:
03/24/1959
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Assignee:
POLYFAB COMPANY
Primary Class:
383/9
Other Classes:
383/37, 383/94, 206/806, 383/63, 156/202, 493/226, 156/203
International Classes:
B65D33/00
US Patent References:
2257517Filing envelope
2647071Method of making laminated case construction
2666466Pouch with sliderless fastener closure
2701223Method of manufacturing plastic wallets
2754867Hosiery purse
2789609Actuator for zippers and pouch embodying the same
2807265Pocket for ring binders