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FR842695A - Telephone device for gas mask - Google Patents

Telephone device for gas mask

Info

Publication number
FR842695A
FR842695A FR842695DA FR842695A FR 842695 A FR842695 A FR 842695A FR 842695D A FR842695D A FR 842695DA FR 842695 A FR842695 A FR 842695A
Authority
FR
France
Prior art keywords
telephone device
gas mask
mask
gas
telephone
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.)
Societe des Telephones Ericsson SA
Original Assignee
Societe des Telephones Ericsson SA
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 Societe des Telephones Ericsson SA filed Critical Societe des Telephones Ericsson SA
Application granted granted Critical
Publication of FR842695A publication Critical patent/FR842695A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
FR842695D 1938-02-21 1938-02-21 Telephone device for gas mask Expired FR842695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR842695T 1938-02-21

Publications (1)

Publication Number Publication Date
FR842695A true FR842695A (en) 1939-06-16

Family

ID=9311579

Family Applications (1)

Application Number Title Priority Date Filing Date
FR842695D Expired FR842695A (en) 1938-02-21 1938-02-21 Telephone device for gas mask

Country Status (1)

Country Link
FR (1) FR842695A (en)

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