FR573895A - Switch device for projection systems - Google Patents

Switch device for projection systems

Info

Publication number
FR573895A
FR573895A FR573895DA FR573895A FR 573895 A FR573895 A FR 573895A FR 573895D A FR573895D A FR 573895DA FR 573895 A FR573895 A FR 573895A
Authority
FR
France
Prior art keywords
switch device
projection systems
projection
systems
switch
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.)
Pathe Cinema SA
Original Assignee
Pathe Cinema 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 Pathe Cinema SA filed Critical Pathe Cinema SA
Application granted granted Critical
Publication of FR573895A publication Critical patent/FR573895A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR573895D 1923-11-28 1923-11-28 Switch device for projection systems Expired FR573895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR573895T 1923-11-28

Publications (1)

Publication Number Publication Date
FR573895A true FR573895A (en) 1924-07-02

Family

ID=8952313

Family Applications (1)

Application Number Title Priority Date Filing Date
FR573895D Expired FR573895A (en) 1923-11-28 1923-11-28 Switch device for projection systems

Country Status (1)

Country Link
FR (1) FR573895A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19748223A1 (en) * 1997-10-31 1999-05-06 Leonhard Bopp Ceiling lamp, especially for low voltage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19748223A1 (en) * 1997-10-31 1999-05-06 Leonhard Bopp Ceiling lamp, especially for low voltage

Similar Documents

Publication Publication Date Title
FR602631A (en) Threading device for files
FR573895A (en) Switch device for projection systems
FR582530A (en) Screw stop device
FR583499A (en) Contact device for bell systems
FR633287A (en) Connection arrangement for alarm systems
FR628637A (en) Device for successively switching on two cinematographic projection devices
FR562902A (en) Installation device for the use of tidal force
FR582738A (en) Relay device for controlling electrical installations
FR593904A (en) Stop device for cinematographic projection devices
FR621406A (en) Warning device for automatic telephone systems
FR28253E (en) Device for repeatedly switching on automatic switches
FR569954A (en) Fastening device for moving corridors
FR560192A (en) Signaling device for hotels
FR583340A (en) Signaling device for automatic extinguishing system
FR558225A (en) Stop device for winding-assemblers
FR27266E (en) Switching device for illuminated signs
FR592927A (en) Winding device for cinematographic projection devices
FR590955A (en) Actuating device for electrical contact devices
FR618903A (en) Switch for ignition device
FR649762A (en) Signaling device for vehicles
FR551604A (en) Faucet dressing device
FR615212A (en) Warning device for extinguishing systems
FR34177E (en) Device for repeatedly switching on automatic switches
FR679234A (en) Switching device for signaling systems
FR581668A (en) Regulating device for radiological installations