FR1023740A - Improvements to control devices for the switch of an electric light - Google Patents

Improvements to control devices for the switch of an electric light

Info

Publication number
FR1023740A
FR1023740A FR1023740DA FR1023740A FR 1023740 A FR1023740 A FR 1023740A FR 1023740D A FR1023740D A FR 1023740DA FR 1023740 A FR1023740 A FR 1023740A
Authority
FR
France
Prior art keywords
switch
control devices
electric light
electric
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)
Inventor
Edward Albert Bolle
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 filed Critical
Application granted granted Critical
Publication of FR1023740A publication Critical patent/FR1023740A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Audible And Visible Signals (AREA)
FR1023740D 1950-05-22 1950-08-24 Improvements to control devices for the switch of an electric light Expired FR1023740A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE285302X 1950-05-22
SE170750X 1950-07-17

Publications (1)

Publication Number Publication Date
FR1023740A true FR1023740A (en) 1953-03-23

Family

ID=26656086

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1023740D Expired FR1023740A (en) 1950-05-22 1950-08-24 Improvements to control devices for the switch of an electric light

Country Status (5)

Country Link
BE (1) BE497535A (en)
CH (1) CH285302A (en)
DE (1) DE826008C (en)
FR (1) FR1023740A (en)
GB (1) GB672177A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673283A (en) * 1951-05-19 1954-03-23 Masabny Anthony Illuminating means for dial telephones

Also Published As

Publication number Publication date
BE497535A (en)
DE826008C (en) 1951-12-27
CH285302A (en) 1952-08-31
GB672177A (en) 1952-05-14

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