FR681634A - Improvements in the manufacture of filter materials - Google Patents

Improvements in the manufacture of filter materials

Info

Publication number
FR681634A
FR681634A FR681634DA FR681634A FR 681634 A FR681634 A FR 681634A FR 681634D A FR681634D A FR 681634DA FR 681634 A FR681634 A FR 681634A
Authority
FR
France
Prior art keywords
manufacture
filter materials
filter
materials
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoover Ltd
Original Assignee
Hoover Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoover Ltd filed Critical Hoover Ltd
Application granted granted Critical
Publication of FR681634A publication Critical patent/FR681634A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
FR681634D 1929-09-11 1929-09-11 Improvements in the manufacture of filter materials Expired FR681634A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR681634T 1929-09-11

Publications (1)

Publication Number Publication Date
FR681634A true FR681634A (en) 1930-05-16

Family

ID=9022924

Family Applications (1)

Application Number Title Priority Date Filing Date
FR681634D Expired FR681634A (en) 1929-09-11 1929-09-11 Improvements in the manufacture of filter materials

Country Status (1)

Country Link
FR (1) FR681634A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE870201C (en) * 1939-01-23 1953-03-12 John Wesley Meaker Paper valve bag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE870201C (en) * 1939-01-23 1953-03-12 John Wesley Meaker Paper valve bag

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