NL231921A - - Google Patents
Info
- Publication number
- NL231921A NL231921A NL231921DA NL231921A NL 231921 A NL231921 A NL 231921A NL 231921D A NL231921D A NL 231921DA NL 231921 A NL231921 A NL 231921A
- Authority
- NL
- Netherlands
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
- H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
- H04R11/12—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
-
- 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
- H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Moving Of Heads (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB31481/57A GB856829A (en) | 1957-10-08 | 1957-10-08 | Improvements in gramophone pick-ups |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL231921A true NL231921A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=10323744
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL231921D NL231921A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1957-10-08 | ||
| NL103122D NL103122C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1957-10-08 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL103122D NL103122C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1957-10-08 |
Country Status (7)
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB394325A (en) * | 1931-12-14 | 1933-06-14 | Alan Dower Blumlein | Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems |
| US2105916A (en) * | 1934-09-05 | 1938-01-18 | Bell Telephone Labor Inc | Sound reproducing system |
| US2114471A (en) * | 1936-06-20 | 1938-04-19 | Bell Telephone Labor Inc | Sound recording and reproducing system |
| DE816311C (de) * | 1949-05-04 | 1951-10-08 | Telefunken Gmbh | Tonabnehmer |
| US2875282A (en) * | 1953-10-06 | 1959-02-24 | Earl M Reiback | Binaural phonograph pickup |
| US2864897A (en) * | 1958-02-17 | 1958-12-16 | Hoffman Electronics Corp | Universal phonograph pickup head or the like |
-
0
- NL NL231921D patent/NL231921A/xx unknown
- NL NL103122D patent/NL103122C/xx active
- BE BE571819D patent/BE571819A/xx unknown
-
1957
- 1957-10-08 GB GB31481/57A patent/GB856829A/en not_active Expired
-
1958
- 1958-09-22 US US762584A patent/US2984711A/en not_active Expired - Lifetime
- 1958-10-07 CH CH6478558A patent/CH363499A/de unknown
- 1958-10-07 FR FR1212894D patent/FR1212894A/fr not_active Expired
- 1958-10-07 DE DEB50644A patent/DE1113584B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1113584B (de) | 1961-09-07 |
| FR1212894A (fr) | 1960-03-28 |
| BE571819A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
| GB856829A (en) | 1960-12-21 |
| CH363499A (de) | 1962-07-31 |
| US2984711A (en) | 1961-05-16 |
| NL103122C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |