NL25222C - - Google Patents
Info
- Publication number
- NL25222C NL25222C NL25222DA NL25222C NL 25222 C NL25222 C NL 25222C NL 25222D A NL25222D A NL 25222DA NL 25222 C NL25222 C NL 25222C
- 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)
- Dc Machiner (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Moving Of Heads (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Electromagnets (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US191012A US1747829A (en) | 1927-05-13 | 1927-05-13 | Electrical reproducer |
| US205562A US1762991A (en) | 1927-07-14 | 1927-07-14 | Electromagnetic reproducer or recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL25222C true NL25222C (https=) |
Family
ID=26886655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL25222D NL25222C (https=) | 1927-05-13 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE573753C (https=) |
| GB (4) | GB290264A (https=) |
| NL (1) | NL25222C (https=) |
-
0
- NL NL25222D patent/NL25222C/xx active
-
1927
- 1927-12-22 DE DEE36673D patent/DE573753C/de not_active Expired
-
1928
- 1928-01-06 GB GB49528A patent/GB290264A/en not_active Expired
- 1928-01-06 GB GB835029A patent/GB307847A/en not_active Expired
- 1928-01-06 GB GB1369828A patent/GB290290A/en not_active Expired
- 1928-01-06 GB GB49628A patent/GB293847A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB307847A (en) | 1930-05-22 |
| DE573753C (de) | 1933-04-05 |
| GB290264A (en) | 1929-04-08 |
| GB290290A (https=) | 1929-04-08 |
| GB293847A (en) | 1929-04-08 |