BE361647A - - Google Patents
Info
- Publication number
- BE361647A BE361647A BE361647DA BE361647A BE 361647 A BE361647 A BE 361647A BE 361647D A BE361647D A BE 361647DA BE 361647 A BE361647 A BE 361647A
- 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)
- Structure Of Telephone Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB32544/28A GB324954A (en) | 1928-11-07 | 1928-11-07 | Improvements in or relating to telephone instruments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE361647A true BE361647A (en:Method) |
Family
ID=10340221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE361647D BE361647A (en:Method) | 1928-11-07 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1932647A (en:Method) |
| BE (1) | BE361647A (en:Method) |
| GB (1) | GB324954A (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2548723A (en) * | 1945-07-13 | 1951-04-10 | Kellogg Switchboard & Supply | Telephone set hook-switch apparatus |
| US2541336A (en) * | 1948-08-23 | 1951-02-13 | Automatic Elect Lab | Secretary's answering key cabinet |
-
0
- BE BE361647D patent/BE361647A/xx unknown
-
1928
- 1928-11-07 GB GB32544/28A patent/GB324954A/en not_active Expired
-
1929
- 1929-10-17 US US400402A patent/US1932647A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB324954A (en) | 1930-02-07 |
| US1932647A (en) | 1933-10-31 |