BE387570A - - Google Patents
Info
- Publication number
- BE387570A BE387570A BE387570DA BE387570A BE 387570 A BE387570 A BE 387570A BE 387570D A BE387570D A BE 387570DA BE 387570 A BE387570 A BE 387570A
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE399202X | 1931-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE387570A true BE387570A (es) |
Family
ID=6397458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE387570D BE387570A (es) | 1931-04-04 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1917724A (es) |
| BE (1) | BE387570A (es) |
| FR (1) | FR734592A (es) |
| GB (1) | GB399202A (es) |
| NL (1) | NL35621C (es) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2443799A (en) * | 1943-06-02 | 1948-06-22 | Ericsson Telefon Ab L M | Cradle-type telephone subset |
| US2433295A (en) * | 1944-11-10 | 1947-12-23 | Automatic Elect Lab | Loud-speaker telephone set |
| US2686848A (en) * | 1951-06-11 | 1954-08-17 | Arthur H Wicknick | Handset cradling attachment for telephones |
| BE541779A (es) * | 1954-10-05 | |||
| US4790008A (en) * | 1986-04-18 | 1988-12-06 | American Telephone And Telegraph Company | Telephone line switch apparatus |
-
0
- BE BE387570D patent/BE387570A/xx unknown
- NL NL35621D patent/NL35621C/xx active
-
1932
- 1932-03-30 GB GB9159/32A patent/GB399202A/en not_active Expired
- 1932-04-02 FR FR734592D patent/FR734592A/fr not_active Expired
- 1932-05-07 US US609888A patent/US1917724A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL35621C (es) | |
| FR734592A (fr) | 1932-10-24 |
| GB399202A (en) | 1933-10-02 |
| US1917724A (en) | 1933-07-11 |