CH87478A - Electric bell. - Google Patents
Electric bell.Info
- Publication number
- CH87478A CH87478A CH87478DA CH87478A CH 87478 A CH87478 A CH 87478A CH 87478D A CH87478D A CH 87478DA CH 87478 A CH87478 A CH 87478A
- Authority
- CH
- Switzerland
- Prior art keywords
- electric bell
- bell
- electric
- Prior art date
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
- G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
- G10K1/06—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube
- G10K1/062—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated
- G10K1/063—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated the sounding member being a bell
- G10K1/064—Operating or striking mechanisms therefor
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electromagnets (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT510522X | 1919-02-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH87478A true CH87478A (en) | 1920-12-01 |
Family
ID=3675556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH87478D CH87478A (en) | 1919-02-24 | 1919-10-29 | Electric bell. |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH87478A (en) |
FR (1) | FR510522A (en) |
GB (1) | GB150350A (en) |
-
1919
- 1919-10-29 CH CH87478D patent/CH87478A/en unknown
-
1920
- 1920-02-23 FR FR510522A patent/FR510522A/en not_active Expired
- 1920-08-25 GB GB24683/20A patent/GB150350A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR510522A (en) | 1920-12-06 |
GB150350A (en) | 1921-09-01 |
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