FR733838A - Improvements to photo-sensitive devices - Google Patents
Improvements to photo-sensitive devicesInfo
- 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
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)
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) |
-
1932
- 1932-03-18 FR FR733838D patent/FR733838A/en not_active Expired
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