FR720882A - Light switch - Google Patents

Light switch

Info

Publication number
FR720882A
FR720882A FR720882DA FR720882A FR 720882 A FR720882 A FR 720882A FR 720882D A FR720882D A FR 720882DA FR 720882 A FR720882 A FR 720882A
Authority
FR
France
Prior art keywords
light switch
switch
light
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR720882A publication Critical patent/FR720882A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
    • H01J40/02—Details
    • H01J40/14—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
FR720882D 1930-08-01 1931-07-31 Light switch Expired FR720882A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE720882X 1930-08-01

Publications (1)

Publication Number Publication Date
FR720882A true FR720882A (en) 1932-02-25

Family

ID=6628784

Family Applications (1)

Application Number Title Priority Date Filing Date
FR720882D Expired FR720882A (en) 1930-08-01 1931-07-31 Light switch

Country Status (1)

Country Link
FR (1) FR720882A (en)

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