NL4053C - - Google Patents
Info
- Publication number
- NL4053C NL4053C NL4053DA NL4053C NL 4053 C NL4053 C NL 4053C NL 4053D A NL4053D A NL 4053DA NL 4053 C NL4053 C NL 4053C
- 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)
- Telephone Set Structure (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE191505846X | 1915-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL4053C true NL4053C (https=) |
Family
ID=32668501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL4053D NL4053C (https=) | 1915-03-17 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE297449C (https=) |
| GB (1) | GB191505846A (https=) |
| NL (1) | NL4053C (https=) |
-
0
- NL NL4053D patent/NL4053C/xx active
- DE DENDAT297449D patent/DE297449C/de active Active
-
1915
- 1915-04-19 GB GB191505846D patent/GB191505846A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE297449C (https=) | |
| GB191505846A (en) | 1916-04-19 |