FR861601A - Relais phono-électrique - Google Patents
Relais phono-électriqueInfo
- Publication number
- FR861601A FR861601A FR861601DA FR861601A FR 861601 A FR861601 A FR 861601A FR 861601D A FR861601D A FR 861601DA FR 861601 A FR861601 A FR 861601A
- Authority
- FR
- France
- Prior art keywords
- phono
- electric relay
- relay
- electric
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Burglar Alarm Systems (AREA)
- Building Environments (AREA)
- Physical Water Treatments (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR861601T | 1939-04-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR861601A true FR861601A (fr) | 1941-02-13 |
Family
ID=9340919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR861601D Expired FR861601A (fr) | 1939-04-25 | 1939-04-25 | Relais phono-électrique |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR861601A (fr) |
GB (1) | GB575731A (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014202932A1 (de) | 2014-02-18 | 2015-08-20 | Robert Bosch Gmbh | Schaltvorrichtung für eine Batterie, sowie Batterie mit einer derartigen Schaltvorrichtung |
-
1939
- 1939-04-25 FR FR861601D patent/FR861601A/fr not_active Expired
-
1940
- 1940-04-24 GB GB7393/40A patent/GB575731A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB575731A (en) | 1946-03-04 |
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