NL52062C - - Google Patents
Info
- Publication number
- NL52062C NL52062C NL52062DA NL52062C NL 52062 C NL52062 C NL 52062C NL 52062D A NL52062D A NL 52062DA NL 52062 C NL52062 C NL 52062C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/58—Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1937S0128034 DE695154C (xx) | 1937-07-14 | 1937-07-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL52062C true NL52062C (xx) | 1941-10-15 |
Family
ID=7537682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL52062D NL52062C (xx) | 1937-07-14 | 1938-02-23 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2238235A (xx) |
| DE (1) | DE695154C (xx) |
| NL (1) | NL52062C (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE972989C (de) * | 1954-05-05 | 1959-11-26 | Kabelindustrie Ag | Personensucheinrichtung |
| DE969905C (de) * | 1955-05-24 | 1958-08-07 | Telefonbau & Normalzeit Gmbh | Schaltungsanordnung fuer Fernsprechnebenstellenanlagen mit in zwei Einstellbewegungen fortschaltbaren Amtswaehlern |
-
1937
- 1937-07-14 DE DE1937S0128034 patent/DE695154C/de not_active Expired
-
1938
- 1938-02-23 NL NL52062D patent/NL52062C/xx active
- 1938-07-09 US US218370A patent/US2238235A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2238235A (en) | 1941-04-15 |
| DE695154C (xx) | 1940-07-18 |