FR482771A - Twilight-operated automatic light switch - Google Patents

Twilight-operated automatic light switch

Info

Publication number
FR482771A
FR482771A FR482771A FR482771DA FR482771A FR 482771 A FR482771 A FR 482771A FR 482771 A FR482771 A FR 482771A FR 482771D A FR482771D A FR 482771DA FR 482771 A FR482771 A FR 482771A
Authority
FR
France
Prior art keywords
twilight
light switch
automatic light
operated automatic
operated
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
FR482771A
Other languages
French (fr)
Inventor
Eugene Steiger
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
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of FR482771A publication Critical patent/FR482771A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/24—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil having light-sensitive input
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
FR482771A 1916-09-02 Twilight-operated automatic light switch Expired FR482771A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR482771T

Publications (1)

Publication Number Publication Date
FR482771A true FR482771A (en) 1917-04-26

Family

ID=8903691

Family Applications (1)

Application Number Title Priority Date Filing Date
FR482771A Expired FR482771A (en) 1916-09-02 Twilight-operated automatic light switch

Country Status (2)

Country Link
DE (1) DE305420C (en)
FR (1) FR482771A (en)

Also Published As

Publication number Publication date
DE305420C (en)

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