FR46547E - Improvements to gas filters - Google Patents

Improvements to gas filters

Info

Publication number
FR46547E
FR46547E FR46547DA FR46547E FR 46547 E FR46547 E FR 46547E FR 46547D A FR46547D A FR 46547DA FR 46547 E FR46547 E FR 46547E
Authority
FR
France
Prior art keywords
gas filters
filters
gas
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
Georges Cain
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.)
A GOUET ETS
Original Assignee
A GOUET ETS
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 A GOUET ETS filed Critical A GOUET ETS
Application granted granted Critical
Publication of FR46547E publication Critical patent/FR46547E/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

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
FR46547D 1935-04-02 1935-04-02 Improvements to gas filters Expired FR46547E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR46547T 1935-04-02

Publications (1)

Publication Number Publication Date
FR46547E true FR46547E (en) 1936-07-09

Family

ID=8682154

Family Applications (1)

Application Number Title Priority Date Filing Date
FR46547D Expired FR46547E (en) 1935-04-02 1935-04-02 Improvements to gas filters

Country Status (1)

Country Link
FR (1) FR46547E (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749035C (en) * 1938-05-05 1944-11-15 HEPA filter made of paper or fiber board for breathing apparatus
US2973833A (en) * 1958-08-25 1961-03-07 Harold G Cook Piston with filter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749035C (en) * 1938-05-05 1944-11-15 HEPA filter made of paper or fiber board for breathing apparatus
US2973833A (en) * 1958-08-25 1961-03-07 Harold G Cook Piston with filter

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