FR733838A - Improvements to photo-sensitive devices - Google Patents

Improvements to photo-sensitive devices

Info

Publication number
FR733838A
FR733838A FR733838DA FR733838A FR 733838 A FR733838 A FR 733838A FR 733838D A FR733838D A FR 733838DA FR 733838 A FR733838 A FR 733838A
Authority
FR
France
Prior art keywords
photo
sensitive devices
sensitive
devices
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR733838A publication Critical patent/FR733838A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/08—Design features of general application for actuating the drive
    • G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
    • G06M1/101—Design features of general application for actuating the drive by electric or magnetic means by electro-optical means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/73—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects
    • E05F15/74—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects using photoelectric cells

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR733838D 1931-03-18 1932-03-18 Improvements to photo-sensitive devices Expired FR733838A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US733838XA 1931-03-18 1931-03-18

Publications (1)

Publication Number Publication Date
FR733838A true FR733838A (en) 1932-10-12

Family

ID=22113377

Family Applications (1)

Application Number Title Priority Date Filing Date
FR733838D Expired FR733838A (en) 1931-03-18 1932-03-18 Improvements to photo-sensitive devices

Country Status (1)

Country Link
FR (1) FR733838A (en)

Similar Documents

Publication Publication Date Title
FR716954A (en) Improvements to thermo-magnetic therapeutic devices
FR740160A (en) Improvements to acoustic warning devices
FR736549A (en) Improvements to photo-sensitive devices
FR733838A (en) Improvements to photo-sensitive devices
FR746433A (en) Improvements to photo-sensitive devices
FR736135A (en) Improvements to knockers
FR723552A (en) Improvements to winders
FR732361A (en) Improvements to brands
FR715719A (en) Improvements to obturator devices
FR733751A (en) Improvements to recording devices
FR40433E (en) Improvements to winding devices
FR44304E (en) Improvements to photo-sensitive devices
FR726169A (en) Improvements to ramming devices
FR713707A (en) Improvements to television devices
FR729516A (en) Improvements to jacks
FR716534A (en) Improvements to acoustic devices
FR715507A (en) Improvements to indicating devices
FR711516A (en) Improvements to modulators
FR719285A (en) Improvements to bannetons
FR732899A (en) Improvements to micro-telephones
FR732335A (en) Improvements to servo-brakes
FR727937A (en) Improvements to decavaillonneurs
FR718083A (en) Improvements to valve-pistons
FR715992A (en) Improvements to motocameras
FR41670E (en) Improvements to decavaillonneurs