FR829329A - Avertisseurs - Google Patents
AvertisseursInfo
- Publication number
- FR829329A FR829329A FR829329DA FR829329A FR 829329 A FR829329 A FR 829329A FR 829329D A FR829329D A FR 829329DA FR 829329 A FR829329 A FR 829329A
- Authority
- FR
- France
- Prior art keywords
- 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
- G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
- G10K9/22—Mountings; Casings
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR829329T | 1937-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR829329A true FR829329A (fr) | 1938-06-20 |
Family
ID=9284198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR829329D Expired FR829329A (fr) | 1937-02-17 | 1937-02-17 | Avertisseurs |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR829329A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2482402A1 (fr) * | 1980-05-06 | 1981-11-13 | Lansing Sound | Pavillon de haut-parleur |
-
1937
- 1937-02-17 FR FR829329D patent/FR829329A/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2482402A1 (fr) * | 1980-05-06 | 1981-11-13 | Lansing Sound | Pavillon de haut-parleur |
US4308932A (en) * | 1980-05-06 | 1982-01-05 | James B. Lansing Sound, Inc. ("Jbl") | Loudspeaker horn |
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