NL5748C - - Google Patents
Info
- Publication number
- NL5748C NL5748C NL5748DA NL5748C NL 5748 C NL5748 C NL 5748C NL 5748D A NL5748D A NL 5748DA NL 5748 C NL5748 C NL 5748C
- 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
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- H04R23/002—Transducers other than those covered by groups H04R9/00 - H04R21/00 using electrothermic-effect transducer
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Resistance Heating (AREA)
- Pipe Accessories (AREA)
- Insulated Conductors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE318481T | 1918-02-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL5748C true NL5748C (ja�@�@) |
Family
ID=32332101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL5748D NL5748C (ja�@�@) | 1918-02-15 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE318481C (ja�@�@) |
| FR (1) | FR495443A (ja�@�@) |
| GB (1) | GB123727A (ja�@�@) |
| NL (1) | NL5748C (ja�@�@) |
-
0
- NL NL5748D patent/NL5748C/xx active
-
1918
- 1918-02-15 DE DE1918318481D patent/DE318481C/de not_active Expired - Lifetime
-
1919
- 1919-02-01 FR FR495443D patent/FR495443A/fr not_active Expired
- 1919-02-14 GB GB361919A patent/GB123727A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE318481C (ja�@�@) | |
| FR495443A (fr) | 1919-10-08 |
| GB123727A (en) | 1919-09-04 |