BE368564R - Loudspeaker enhancements - Google Patents
Loudspeaker enhancementsInfo
- Publication number
- BE368564R BE368564R BE368564A BE368564A BE368564R BE 368564 R BE368564 R BE 368564R BE 368564 A BE368564 A BE 368564A BE 368564 A BE368564 A BE 368564A BE 368564 R BE368564 R BE 368564R
- Authority
- BE
- Belgium
- Prior art keywords
- enhancements
- loudspeaker
- loudspeaker enhancements
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US154814A US1713210A (en) | 1926-12-14 | 1926-12-14 | Cone-type loud-speaker |
US164620A US1689513A (en) | 1927-01-29 | 1927-01-29 | Sound-reproducing device |
US347060A US1814798A (en) | 1929-03-14 | 1929-03-14 | Apparatus for producing sound |
Publications (1)
Publication Number | Publication Date |
---|---|
BE368564R true BE368564R (en) | 1930-04-30 |
Family
ID=27387646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE368564A BE368564R (en) | 1926-12-14 | 1930-03-19 | Loudspeaker enhancements |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE368564R (en) |
-
1930
- 1930-03-19 BE BE368564A patent/BE368564R/en active
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