NL17864C - - Google Patents
Info
- Publication number
- NL17864C NL17864C NL17864DA NL17864C NL 17864 C NL17864 C NL 17864C NL 17864D A NL17864D A NL 17864DA NL 17864 C NL17864 C NL 17864C
- 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
- H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB436069X | 1924-08-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL17864C true NL17864C (xx) |
Family
ID=10429510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL17864D NL17864C (xx) | 1924-08-26 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE436069C (xx) |
| NL (1) | NL17864C (xx) |
-
0
- NL NL17864D patent/NL17864C/xx active
-
1925
- 1925-08-14 DE DEM90936D patent/DE436069C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE436069C (de) | 1926-10-25 |