FR26989E - Portable backup device - Google Patents
Portable backup deviceInfo
- Publication number
- FR26989E FR26989E FR26989DA FR26989E FR 26989 E FR26989 E FR 26989E FR 26989D A FR26989D A FR 26989DA FR 26989 E FR26989 E FR 26989E
- Authority
- FR
- France
- Prior art keywords
- backup device
- portable backup
- portable
- backup
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR26989T | 1922-09-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR26989E true FR26989E (en) | 1924-03-20 |
Family
ID=8665354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR26989D Expired FR26989E (en) | 1922-09-23 | 1922-09-23 | Portable backup device |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR26989E (en) |
-
1922
- 1922-09-23 FR FR26989D patent/FR26989E/en not_active Expired
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