NL29665C - - Google Patents
Info
- Publication number
- NL29665C NL29665C NL29665DA NL29665C NL 29665 C NL29665 C NL 29665C NL 29665D A NL29665D A NL 29665DA NL 29665 C NL29665 C NL 29665C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/16—Mounting or connecting stylus to transducer with or without damping means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Moving Of Heads (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Fluid-Damping Devices (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US174355A US1760527A (en) | 1927-03-10 | 1927-03-10 | Electrical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL29665C true NL29665C (https=) |
Family
ID=22635864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL29665D NL29665C (https=) | 1927-03-10 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1760527A (https=) |
| DE (1) | DE546861C (https=) |
| FR (1) | FR651366A (https=) |
| GB (1) | GB286719A (https=) |
| NL (1) | NL29665C (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2514379A (en) * | 1947-08-25 | 1950-07-11 | Jr Charles R Douglass | Electrodynamic recording head |
-
0
- NL NL29665D patent/NL29665C/xx active
-
1927
- 1927-03-10 US US174355A patent/US1760527A/en not_active Expired - Lifetime
-
1928
- 1928-03-05 GB GB6884/28A patent/GB286719A/en not_active Expired
- 1928-03-09 DE DEA53496D patent/DE546861C/de not_active Expired
- 1928-03-09 FR FR651366D patent/FR651366A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE546861C (de) | 1932-03-21 |
| GB286719A (en) | 1928-11-22 |
| US1760527A (en) | 1930-05-27 |
| FR651366A (fr) | 1929-02-18 |