FR537606A - Protection device operating by pressurized fluid - Google Patents

Protection device operating by pressurized fluid

Info

Publication number
FR537606A
FR537606A FR537606DA FR537606A FR 537606 A FR537606 A FR 537606A FR 537606D A FR537606D A FR 537606DA FR 537606 A FR537606 A FR 537606A
Authority
FR
France
Prior art keywords
protection device
pressurized fluid
device operating
operating
pressurized
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
Felix Durel
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.)
Gouvernement de la Republique Francaise
Original Assignee
Gouvernement de la Republique Francaise
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 Gouvernement de la Republique Francaise filed Critical Gouvernement de la Republique Francaise
Application granted granted Critical
Publication of FR537606A publication Critical patent/FR537606A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/20—Actuation by change of fluid pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
FR537606D 1921-06-25 1921-06-25 Protection device operating by pressurized fluid Expired FR537606A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR537606T 1921-06-25

Publications (1)

Publication Number Publication Date
FR537606A true FR537606A (en) 1922-05-27

Family

ID=8927623

Family Applications (1)

Application Number Title Priority Date Filing Date
FR537606D Expired FR537606A (en) 1921-06-25 1921-06-25 Protection device operating by pressurized fluid

Country Status (1)

Country Link
FR (1) FR537606A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001227A1 (en) * 1985-08-12 1987-02-26 Millar Frederick W Security apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001227A1 (en) * 1985-08-12 1987-02-26 Millar Frederick W Security apparatus

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