NL78861C - - Google Patents
Info
- Publication number
- NL78861C NL78861C NL178685A NL178685A NL78861C NL 78861 C NL78861 C NL 78861C NL 178685 A NL178685 A NL 178685A NL 178685 A NL178685 A NL 178685A NL 78861 C NL78861 C NL 78861C
- 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
- 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
-
- 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)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1081227T | 1953-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL78861C true NL78861C (en:Method) | 1955-08-15 |
Family
ID=9610000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL178685A NL78861C (en:Method) | 1953-04-27 | 1953-05-29 |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH320956A (en:Method) |
| FR (1) | FR1081227A (en:Method) |
| NL (1) | NL78861C (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1363723A (en) * | 1971-05-17 | 1974-08-14 | Amplivox Communications Ltd | Earphone assemblies |
-
1953
- 1953-04-27 FR FR1081227D patent/FR1081227A/fr not_active Expired
- 1953-05-29 NL NL178685A patent/NL78861C/xx active
-
1954
- 1954-04-24 CH CH320956D patent/CH320956A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1081227A (fr) | 1954-12-16 |
| CH320956A (fr) | 1957-04-15 |