Title:
NON-WOVEN FABRIC
United States Patent 3509009

Inventors:
Hartmann, Ludwig
Publication Date:
04/28/1970
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Assignee:
FREUDENBERG CARL KG
Primary Class:
428/156
Other Classes:
442/337, 264/211.140, 156/229, 442/415, 442/411, 156/181, 428/910
International Classes:
A24D3/02; D01D5/098; D01D5/253; D04H3/16; A24D3/00; D01D5/00; D01D5/08; D04H3/08; D04H1/04
US Patent References:
2522527Spinning gun for the production of filaments and method of making nonwoven fabrics
2688380Filter cartridge
2810426Reticulated webs and method and apparatus for their production
2861319Intermittent core filaments
3314840Process and apparatus for producing a non-woven fabric




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