NL87429C - - Google Patents
Info
- Publication number
- NL87429C NL87429C NL87429DA NL87429C NL 87429 C NL87429 C NL 87429C NL 87429D A NL87429D A NL 87429DA NL 87429 C NL87429 C NL 87429C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/38—Graded-service arrangements, i.e. some subscribers prevented from establishing certain connections
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES28403A DE940170C (de) | 1952-05-04 | 1952-05-04 | Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbetrieb und Teilnehmern verschiedener Verkehrsberechtigung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL87429C true NL87429C (xx) |
Family
ID=7479418
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE7702251,A NL178061B (nl) | 1952-05-04 | Werkwijze en inrichting voor het vervaardigen van gietvormen met behulp van vacuum, en vormkast te gebruiken bij de werkwijze. | |
| NL87429D NL87429C (xx) | 1952-05-04 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE7702251,A NL178061B (nl) | 1952-05-04 | Werkwijze en inrichting voor het vervaardigen van gietvormen met behulp van vacuum, en vormkast te gebruiken bij de werkwijze. |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE940170C (xx) |
| NL (2) | NL87429C (xx) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE599839C (de) * | 1930-08-30 | 1934-07-14 | August Heibel | Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbetrieb nach dem Anrufsuchersystem |
| DE657359C (de) * | 1933-03-01 | 1938-03-03 | Siemens & Halske Akt Ges | Schaltungsanordnung fuer Fernsprechanlagen |
| DE659396C (de) * | 1933-03-01 | 1938-05-07 | Siemens & Halske Akt Ges | Schaltungsanordnung fuer Fernsprechanlagen |
-
0
- NL NLAANVRAGE7702251,A patent/NL178061B/xx unknown
- NL NL87429D patent/NL87429C/xx active
-
1952
- 1952-05-04 DE DES28403A patent/DE940170C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE940170C (de) | 1956-03-15 |
| NL178061B (nl) |