FR726463A - Process for the manufacture of smoke filters or collective filters - Google Patents

Process for the manufacture of smoke filters or collective filters

Info

Publication number
FR726463A
FR726463A FR726463DA FR726463A FR 726463 A FR726463 A FR 726463A FR 726463D A FR726463D A FR 726463DA FR 726463 A FR726463 A FR 726463A
Authority
FR
France
Prior art keywords
filters
manufacture
collective
smoke
smoke filters
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.)
HAERENS TEKNISKE KORPS
Original Assignee
HAERENS TEKNISKE KORPS
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 HAERENS TEKNISKE KORPS filed Critical HAERENS TEKNISKE KORPS
Application granted granted Critical
Publication of FR726463A publication Critical patent/FR726463A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B21/00—Devices for producing oxygen from chemical substances for respiratory apparatus

Landscapes

  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
FR726463D 1931-11-06 1931-11-06 Process for the manufacture of smoke filters or collective filters Expired FR726463A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR726463T 1931-11-06

Publications (1)

Publication Number Publication Date
FR726463A true FR726463A (en) 1932-05-30

Family

ID=9110701

Family Applications (1)

Application Number Title Priority Date Filing Date
FR726463D Expired FR726463A (en) 1931-11-06 1931-11-06 Process for the manufacture of smoke filters or collective filters

Country Status (1)

Country Link
FR (1) FR726463A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE879057C (en) * 1950-04-19 1953-06-08 Paul Lucas Braids or fabrics to hold back dust, especially for breathing masks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE879057C (en) * 1950-04-19 1953-06-08 Paul Lucas Braids or fabrics to hold back dust, especially for breathing masks

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