FR485836A - Improvements made to electrical switches - Google Patents

Improvements made to electrical switches

Info

Publication number
FR485836A
FR485836A FR485836DA FR485836A FR 485836 A FR485836 A FR 485836A FR 485836D A FR485836D A FR 485836DA FR 485836 A FR485836 A FR 485836A
Authority
FR
France
Prior art keywords
improvements made
electrical switches
switches
electrical
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
Martin Joseph Quinn
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR485836A publication Critical patent/FR485836A/en
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)
FR485836D 1917-06-16 1917-06-16 Improvements made to electrical switches Expired FR485836A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR485836T 1917-06-16

Publications (1)

Publication Number Publication Date
FR485836A true FR485836A (en) 1918-02-08

Family

ID=1522504

Family Applications (1)

Application Number Title Priority Date Filing Date
FR485836D Expired FR485836A (en) 1917-06-16 1917-06-16 Improvements made to electrical switches

Country Status (1)

Country Link
FR (1) FR485836A (en)

Similar Documents

Publication Publication Date Title
FR491413A (en) Improvements to electric accumulators
FR485836A (en) Improvements made to electrical switches
FR499498A (en) Improvements to electric accumulators
FR519172A (en) Improvements to electrical insulators
FR521057A (en) Improvements to electrical switches
FR490381A (en) Improvements to electrical relays
FR486173A (en) Improvements to electrical breakers
FR494908A (en) Improvements to electrical switches
FR493759A (en) Improvements made to electric accumulators
FR487994A (en) Improvements to electrical switches
FR490428A (en) Improvements to electrical controllers
FR489463A (en) Improvements to electromagnetic switches
FR491089A (en) Improvements to electrolytic devices
FR492201A (en) Improvements to electrical transformers
FR495857A (en) Improvements made to electrical switches
FR470430A (en) Improvements to electrical switches
FR489428A (en) Improvements to contactors-circuit breakers
FR507994A (en) Improvements to insulators
FR512210A (en) Improvements to insulators
FR513714A (en) Improvements to magnet switches
FR490799A (en) Improvements to electric heaters
FR496488A (en) Improvements to electrical switches
FR502270A (en) Improvements to electrical signs
FR489874A (en) Improvements to electric sirens
FR503686A (en) Improvements to electric accumulators