BE436654A - - Google Patents
Info
- Publication number
- BE436654A BE436654A BE436654DA BE436654A BE 436654 A BE436654 A BE 436654A BE 436654D A BE436654D A BE 436654DA BE 436654 A BE436654 A BE 436654A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE216274X | 1938-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE436654A true BE436654A (en) |
Family
ID=5828347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE436654D BE436654A (en) | 1938-12-30 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE436654A (en) |
| CH (1) | CH216274A (en) |
| FR (1) | FR888179A (en) |
| NL (1) | NL58582C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE972766C (en) * | 1941-12-14 | 1959-09-24 | Normalzeit G M B H | Intercom with several stations and a central amplifier |
-
0
- NL NL58582D patent/NL58582C/xx active
- BE BE436654D patent/BE436654A/xx unknown
-
1939
- 1939-10-05 CH CH216274D patent/CH216274A/en unknown
-
1942
- 1942-10-05 FR FR888179D patent/FR888179A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL58582C (en) | |
| FR888179A (en) | 1943-12-06 |
| CH216274A (en) | 1941-08-15 |