FR430491A - Improvements to the tubes and other warning devices - Google Patents
Improvements to the tubes and other warning devicesInfo
- Publication number
- FR430491A FR430491A FR430491DA FR430491A FR 430491 A FR430491 A FR 430491A FR 430491D A FR430491D A FR 430491DA FR 430491 A FR430491 A FR 430491A
- Authority
- FR
- France
- Prior art keywords
- tubes
- warning devices
- warning
- 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
- 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
- G10K9/10—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by mechanical means only
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR430491T | 1911-05-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR430491A true FR430491A (en) | 1911-10-17 |
Family
ID=1472727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR430491D Expired FR430491A (en) | 1911-05-02 | 1911-05-02 | Improvements to the tubes and other warning devices |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR430491A (en) |
-
1911
- 1911-05-02 FR FR430491D patent/FR430491A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR430491A (en) | Improvements to the tubes and other warning devices | |
FR485924A (en) | Improvements to sirens and other similar devices | |
FR436569A (en) | Improvements to spirometers and similar devices | |
FR438566A (en) | Burette can | |
FR430490A (en) | Improvements to sound horns and other warning devices | |
CH54190A (en) | Pipe vice | |
FR478225A (en) | Improvements to warning devices | |
FR448525A (en) | Improvements to refrigeration devices | |
FR437852A (en) | Improvements to aviation devices | |
FR446283A (en) | Improvements to aviation devices | |
FR435874A (en) | Improvements to pacifiers | |
FR436278A (en) | Improvements to mannequins | |
FR459570A (en) | Improvements to sirens and similar devices | |
FR431550A (en) | Improvements to orthopedic devices | |
CH55963A (en) | Indicator | |
FR437697A (en) | Improvements to filtering devices | |
FR14681E (en) | Improvements to airplanes and other similar devices | |
FR420255A (en) | Improvements to airplanes and other similar devices | |
FR452017A (en) | Improvements in aeronautical devices | |
FR432420A (en) | Improvements to changing advertising devices | |
FR427544A (en) | Improvements to the mills | |
FR473916A (en) | Improvements to airplanes and similar devices | |
FR444377A (en) | Improvements to gyroscopic devices | |
FR428355A (en) | Improvements made to the construction of recording devices | |
FR435120A (en) | Improvements to pasteurizing devices |