BE387111A - - Google Patents
Info
- Publication number
- BE387111A BE387111A BE387111DA BE387111A BE 387111 A BE387111 A BE 387111A BE 387111D A BE387111D A BE 387111DA BE 387111 A BE387111 A BE 387111A
- 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
- H04M1/04—Supports for telephone transmitters or receivers
- H04M1/05—Supports for telephone transmitters or receivers specially adapted for use on head, throat or breast
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT729907X | 1931-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE387111A true BE387111A (en:Method) |
Family
ID=3680072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE387111D BE387111A (en:Method) | 1931-03-13 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE387111A (en:Method) |
| DE (1) | DE607435C (en:Method) |
| FR (1) | FR729907A (en:Method) |
-
0
- BE BE387111D patent/BE387111A/xx unknown
-
1931
- 1931-09-17 DE DER82758D patent/DE607435C/de not_active Expired
-
1932
- 1932-01-18 FR FR729907D patent/FR729907A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE607435C (de) | 1935-01-02 |
| FR729907A (fr) | 1932-08-03 |