CH226810A - Pipe connection to the vehicle frame. - Google Patents
Pipe connection to the vehicle frame.Info
- Publication number
- CH226810A CH226810A CH226810DA CH226810A CH 226810 A CH226810 A CH 226810A CH 226810D A CH226810D A CH 226810DA CH 226810 A CH226810 A CH 226810A
- Authority
- CH
- Switzerland
- Prior art keywords
- vehicle frame
- pipe connection
- pipe
- connection
- vehicle
- 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/225—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only for telephonic receivers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE70640X | 1940-06-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH226810A true CH226810A (en) | 1943-04-30 |
Family
ID=5635509
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH225198D CH225198A (en) | 1940-06-07 | 1941-07-14 | Electroacoustic converter. |
CH226810D CH226810A (en) | 1940-06-07 | 1942-06-09 | Pipe connection to the vehicle frame. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH225198D CH225198A (en) | 1940-06-07 | 1941-07-14 | Electroacoustic converter. |
Country Status (2)
Country | Link |
---|---|
CH (2) | CH225198A (en) |
FR (1) | FR872894A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH326618A (en) * | 1953-11-14 | 1957-12-31 | Tesla Np | Loudspeaker enclosure |
NL164451C (en) * | 1969-01-17 | 1980-12-15 | Philips Nv | DEVICE FOR CONVERTING ACOUSTIC TO ELECTRICAL VIBRATIONS AND VERSUS, INCLUDING A MAGNETIC SYSTEM AND A NON-MAGNETIC CENTER. |
-
1941
- 1941-06-05 FR FR872894D patent/FR872894A/en not_active Expired
- 1941-07-14 CH CH225198D patent/CH225198A/en unknown
-
1942
- 1942-06-09 CH CH226810D patent/CH226810A/en unknown
Also Published As
Publication number | Publication date |
---|---|
CH225198A (en) | 1943-01-15 |
FR872894A (en) | 1942-06-22 |
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