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FR808802A - Paper filter against arsines and its manufacturing process - Google Patents

Paper filter against arsines and its manufacturing process

Info

Publication number
FR808802A
FR808802A FR808802DA FR808802A FR 808802 A FR808802 A FR 808802A FR 808802D A FR808802D A FR 808802DA FR 808802 A FR808802 A FR 808802A
Authority
FR
France
Prior art keywords
arsines
manufacturing process
paper filter
filter against
paper
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)
Inventor
Raichlen Louis
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 filed Critical
Application granted granted Critical
Publication of FR808802A publication Critical patent/FR808802A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/08—Filter paper

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
FR808802D 1935-11-06 1935-11-06 Paper filter against arsines and its manufacturing process Expired FR808802A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR808802T 1935-11-06

Publications (1)

Publication Number Publication Date
FR808802A true FR808802A (en) 1937-02-16

Family

ID=9253165

Family Applications (1)

Application Number Title Priority Date Filing Date
FR808802D Expired FR808802A (en) 1935-11-06 1935-11-06 Paper filter against arsines and its manufacturing process

Country Status (1)

Country Link
FR (1) FR808802A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2983943A (en) * 1959-05-19 1961-05-16 Robert W Fendler Plaster scraping device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2983943A (en) * 1959-05-19 1961-05-16 Robert W Fendler Plaster scraping device

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