NL20010C - - Google Patents
Info
- Publication number
- NL20010C NL20010C NL20010DA NL20010C NL 20010 C NL20010 C NL 20010C NL 20010D A NL20010D A NL 20010DA NL 20010 C NL20010 C NL 20010C
- 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
-
- 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
- G11B3/44—Styli, e.g. sapphire, diamond
- G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Magnetic Treatment Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1704526A GB258530A (en) | 1925-07-25 | 1925-07-25 | Improvements in or relating to electromagnetic vibratory devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL20010C true NL20010C (cs) |
Family
ID=10088253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL20010D NL20010C (cs) | 1925-07-25 |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH125514A (cs) |
| GB (1) | GB258530A (cs) |
| NL (1) | NL20010C (cs) |
-
0
- NL NL20010D patent/NL20010C/xx active
-
1925
- 1925-07-25 GB GB1704526A patent/GB258530A/en not_active Expired
- 1925-12-22 CH CH125514D patent/CH125514A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB258530A (en) | 1926-09-23 |
| CH125514A (de) | 1928-04-16 |