BE354302A - - Google Patents
Info
- Publication number
- BE354302A BE354302A BE354302DA BE354302A BE 354302 A BE354302 A BE 354302A BE 354302D A BE354302D A BE 354302DA BE 354302 A BE354302 A BE 354302A
- Authority
- BE
- Belgium
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
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE297390X | 1927-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE354302A true BE354302A (en:Method) |
Family
ID=20307356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE354302D BE354302A (en:Method) | 1927-09-20 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE354302A (en:Method) |
| FR (1) | FR660753A (en:Method) |
| GB (1) | GB297390A (en:Method) |
| NL (1) | NL25060C (en:Method) |
-
0
- NL NL25060D patent/NL25060C/xx active
- BE BE354302D patent/BE354302A/xx unknown
-
1928
- 1928-09-14 FR FR660753D patent/FR660753A/fr not_active Expired
- 1928-09-18 GB GB26757/28A patent/GB297390A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL25060C (en:Method) | |
| GB297390A (en) | 1929-11-28 |
| FR660753A (fr) | 1929-07-17 |