CPC B01D39/14
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CPC B01D39/14 is a technology classification of patents for those about XYZ.[1][2]
Tech classification tree:
- Filtration; Filtering material, regeneration thereof
- CPC B01D39/00 Filtering material for liquid or gaseous fluids
- . . .
- CPC B01D39/14 Other self-supporting filtering material ; Other filtering material (non-woven fabrics in general D04H3/00)
References
- ↑ CPC B01D39/00 element at Espacenet web site
- ↑ CPC B01D39/00 element listed at USPTO
This wiki has 2 patents in category "CPC B01D39/14".
Patents in category CPC B01D39/14
- Patent FR-1904-347740 (English title: Filter body formed of a fibrous material arranged in layers of increasing compactness, Inventors: W. Stavenhagen, Filing date: 1904-11-08)
- Patent DE-1903-157815 (English title: Process for producing filter layers from pulp with strata of increasing density, Filing date: 1903-11-12, Applicant firm: Firma W. Stavenhagen)
Enclosing categories | CPC B01D39/00, CPC B01D |
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