FR508989A - Warning - Google Patents
WarningInfo
- Publication number
- FR508989A FR508989A FR508989A FR508989DA FR508989A FR 508989 A FR508989 A FR 508989A FR 508989 A FR508989 A FR 508989A FR 508989D A FR508989D A FR 508989DA FR 508989 A FR508989 A FR 508989A
- Authority
- FR
- France
- Prior art keywords
- 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
- G10K9/10—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 |
---|---|---|---|
FR508989T | 1919-03-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR508989A true FR508989A (en) | 1920-10-28 |
Family
ID=8910743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR508989A Expired FR508989A (en) | 1919-03-13 | 1919-03-13 | Warning |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR508989A (en) |
-
1919
- 1919-03-13 FR FR508989A patent/FR508989A/en not_active Expired
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