NL25229C - - Google Patents
Info
- Publication number
- NL25229C NL25229C NL25229DA NL25229C NL 25229 C NL25229 C NL 25229C NL 25229D A NL25229D A NL 25229DA NL 25229 C NL25229 C NL 25229C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE292903X | 1927-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL25229C true NL25229C (en:Method) |
Family
ID=6076048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL25229D NL25229C (en:Method) | 1927-06-25 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE350207A (en:Method) |
| FR (1) | FR652090A (en:Method) |
| GB (1) | GB292903A (en:Method) |
| NL (1) | NL25229C (en:Method) |
-
0
- NL NL25229D patent/NL25229C/xx active
- BE BE350207D patent/BE350207A/xx unknown
-
1928
- 1928-03-24 GB GB8987/28A patent/GB292903A/en not_active Expired
- 1928-04-03 FR FR652090D patent/FR652090A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE350207A (en:Method) | |
| FR652090A (fr) | 1929-03-04 |
| GB292903A (en) | 1929-03-21 |