NL90903C - - Google Patents
Info
- Publication number
- NL90903C NL90903C NL90903DA NL90903C NL 90903 C NL90903 C NL 90903C NL 90903D A NL90903D A NL 90903DA NL 90903 C NL90903 C NL 90903C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Keying Circuit Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH933931X | 1953-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL90903C true NL90903C (en:Method) |
Family
ID=4548965
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE7811881,A NL187588B (nl) | 1953-06-18 | Graafmachine met blokkeerbare pendelas. | |
| NL90903D NL90903C (en:Method) | 1953-06-18 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE7811881,A NL187588B (nl) | 1953-06-18 | Graafmachine met blokkeerbare pendelas. |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH314507A (en:Method) |
| DE (1) | DE933931C (en:Method) |
| NL (2) | NL90903C (en:Method) |
-
0
- NL NLAANVRAGE7811881,A patent/NL187588B/xx unknown
- NL NL90903D patent/NL90903C/xx active
-
1953
- 1953-06-18 CH CH314507D patent/CH314507A/de unknown
-
1954
- 1954-04-04 DE DEA20046A patent/DE933931C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH314507A (de) | 1956-06-15 |
| NL187588B (nl) | |
| DE933931C (de) | 1955-10-06 |