NL72371C - - Google Patents
Info
- Publication number
- NL72371C NL72371C NL72371DA NL72371C NL 72371 C NL72371 C NL 72371C NL 72371D A NL72371D A NL 72371DA NL 72371 C NL72371 C NL 72371C
- Authority
- NL
- Netherlands
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)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL833209X | 1949-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL72371C true NL72371C (ru) |
Family
ID=19843043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL72371D NL72371C (ru) | 1949-05-18 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE495606A (ru) |
| DE (1) | DE833209C (ru) |
| NL (1) | NL72371C (ru) |
-
0
- NL NL72371D patent/NL72371C/xx active
- BE BE495606D patent/BE495606A/xx unknown
-
1950
- 1950-05-09 DE DEN853A patent/DE833209C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE495606A (ru) | |
| DE833209C (de) | 1952-03-06 |