FR453137A - Commutateur électrique à secret - Google Patents

Commutateur électrique à secret

Info

Publication number
FR453137A
FR453137A FR453137DA FR453137A FR 453137 A FR453137 A FR 453137A FR 453137D A FR453137D A FR 453137DA FR 453137 A FR453137 A FR 453137A
Authority
FR
France
Prior art keywords
secret switch
electric secret
electric
switch
secret
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
English (en)
Inventor
Joseph-Adrien Trayaud
Emile-Baptiste Merigoux
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.)
JOSEPH ADRIEN TRAYAUD
Original Assignee
JOSEPH ADRIEN TRAYAUD
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 JOSEPH ADRIEN TRAYAUD filed Critical JOSEPH ADRIEN TRAYAUD
Application granted granted Critical
Publication of FR453137A publication Critical patent/FR453137A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
    • G07C9/00666—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with dials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR453137D 1913-01-14 1913-01-14 Commutateur électrique à secret Expired FR453137A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR453137T 1913-01-14

Publications (1)

Publication Number Publication Date
FR453137A true FR453137A (fr) 1913-05-31

Family

ID=1493279

Family Applications (1)

Application Number Title Priority Date Filing Date
FR453137D Expired FR453137A (fr) 1913-01-14 1913-01-14 Commutateur électrique à secret

Country Status (1)

Country Link
FR (1) FR453137A (fr)

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