FR460856A - Magneto-electric warning device - Google Patents
Magneto-electric warning deviceInfo
- Publication number
- FR460856A FR460856A FR460856DA FR460856A FR 460856 A FR460856 A FR 460856A FR 460856D A FR460856D A FR 460856DA FR 460856 A FR460856 A FR 460856A
- Authority
- FR
- France
- Prior art keywords
- magneto
- warning device
- electric warning
- electric
- warning
- 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
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR460856T | 1913-07-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR460856A true FR460856A (en) | 1913-12-13 |
Family
ID=1500218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR460856D Expired FR460856A (en) | 1913-07-29 | 1913-07-29 | Magneto-electric warning device |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR460856A (en) |
-
1913
- 1913-07-29 FR FR460856D patent/FR460856A/en not_active Expired
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