FR758086A - Pneumatic control device for movable electrical contacts of switching tables for the selective switching on of lamps on lamp panels - Google Patents

Pneumatic control device for movable electrical contacts of switching tables for the selective switching on of lamps on lamp panels

Info

Publication number
FR758086A
FR758086A FR758086DA FR758086A FR 758086 A FR758086 A FR 758086A FR 758086D A FR758086D A FR 758086DA FR 758086 A FR758086 A FR 758086A
Authority
FR
France
Prior art keywords
switching
lamps
control device
electrical contacts
pneumatic control
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
Luigi Cheli
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 FR758086A publication Critical patent/FR758086A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/004—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes to give the appearance of moving signs

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
FR758086D 1933-04-24 1933-07-06 Pneumatic control device for movable electrical contacts of switching tables for the selective switching on of lamps on lamp panels Expired FR758086A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT758086X 1933-04-24

Publications (1)

Publication Number Publication Date
FR758086A true FR758086A (en) 1934-01-10

Family

ID=11315832

Family Applications (1)

Application Number Title Priority Date Filing Date
FR758086D Expired FR758086A (en) 1933-04-24 1933-07-06 Pneumatic control device for movable electrical contacts of switching tables for the selective switching on of lamps on lamp panels

Country Status (1)

Country Link
FR (1) FR758086A (en)

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