NL11072C - - Google Patents
Info
- Publication number
- NL11072C NL11072C NL22005A NL22005A NL11072C NL 11072 C NL11072 C NL 11072C NL 22005 A NL22005 A NL 22005A NL 22005 A NL22005 A NL 22005A NL 11072 C NL11072 C NL 11072C
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/001—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor with vibrating mechanical coupling means between pick-up element and sound producing element
-
- 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)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB12847/22A GB195879A (en) | 1922-05-06 | 1922-05-06 | Improvements in electro-magnetic sound-boxes for phonographs and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL11072C true NL11072C (de) |
Family
ID=10012210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL22005A NL11072C (de) | 1922-05-06 | 1922-04-05 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1522657A (de) |
| CH (1) | CH100986A (de) |
| FR (1) | FR550978A (de) |
| GB (1) | GB195879A (de) |
| NL (1) | NL11072C (de) |
-
1922
- 1922-03-27 CH CH100986D patent/CH100986A/de unknown
- 1922-04-05 NL NL22005A patent/NL11072C/xx active
- 1922-05-04 FR FR550978D patent/FR550978A/fr not_active Expired
- 1922-05-06 GB GB12847/22A patent/GB195879A/en not_active Expired
- 1922-06-03 US US565766A patent/US1522657A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CH100986A (de) | 1923-08-16 |
| GB195879A (en) | 1923-04-12 |
| US1522657A (en) | 1925-01-13 |
| FR550978A (fr) | 1923-03-24 |