Air filter
United States Patent 2988169
US Patent References:
Filter pad
- - 1874734

Interiorly supported filter pad
- - 2124370

Paper container for fluid
- - 2139626

Filter for inspirators
- - 2378839

Air filter
- - 2505175


Inventors:
Klein, Joseph J.
Publication Date:
06/13/1961
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Assignee:
FIBER BOND CORP
Primary Class:
55/502
Other Classes:
55/514, 55/509
International Classes:
B01D39/08; B01D39/14
US Patent References:
2521984Fibrous unit
2536442Container
2633440Double-face adhesive tape and protective cover therefor
2678591Machine for manufacture of rectangular containers
2768922Method of securing ribbon films to slide fastener tapes
2784132Air permeable fibrous batt