NL201110A - - Google Patents
Info
- Publication number
- NL201110A NL201110A NL201110DA NL201110A NL 201110 A NL201110 A NL 201110A NL 201110D A NL201110D A NL 201110DA NL 201110 A NL201110 A NL 201110A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Devices For Supply Of Signal Current (AREA)
- Telephonic Communication Services (AREA)
- Circuit For Audible Band Transducer (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE790442X | 1954-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL201110A true NL201110A (no) |
Family
ID=20338103
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL201110D NL201110A (no) | 1954-10-25 | ||
| NL96910D NL96910C (no) | 1954-10-25 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL96910D NL96910C (no) | 1954-10-25 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2909609A (no) |
| DE (1) | DE959198C (no) |
| FR (1) | FR1140388A (no) |
| GB (1) | GB790442A (no) |
| NL (2) | NL96910C (no) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3045069A (en) * | 1957-05-09 | 1962-07-17 | Dictaphone Corp | Remote control system |
| US2986603A (en) * | 1957-10-14 | 1961-05-30 | Bell Telephone Labor Inc | Telephone signaling apparatus |
| GB852198A (en) * | 1957-11-06 | 1960-10-26 | Ericsson Telefon Ab L M | Improvements in or relating to apparatus for sending signals indicative of the values of coins inserted into a coin operated telephone instrument, to a control device inan automatic telephone exchange |
| CH379584A (de) * | 1958-09-03 | 1964-07-15 | Standard Telephon & Radio Ag | Elektrische Signalisier-Einrichtung |
| NL252835A (no) * | 1959-06-23 | |||
| US3091666A (en) * | 1960-05-19 | 1963-05-28 | Bell Telephone Labor Inc | Party identification for telephone substations |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2554201A (en) * | 1946-06-19 | 1951-05-22 | Ericsson Telefon Ab L M | Key-sending automatic telephone signaling system |
| NL73400C (no) * | 1948-02-05 | |||
| NL162796B (nl) * | 1950-07-21 | Draka Kabel Bv | Waterdicht stopcontact. | |
| BE512760A (no) * | 1951-07-13 |
-
0
- NL NL201110D patent/NL201110A/xx unknown
- NL NL96910D patent/NL96910C/xx active
-
1955
- 1955-10-05 US US538668A patent/US2909609A/en not_active Expired - Lifetime
- 1955-10-24 GB GB30383/55A patent/GB790442A/en not_active Expired
- 1955-10-25 FR FR1140388D patent/FR1140388A/fr not_active Expired
- 1955-10-25 DE DET11494A patent/DE959198C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE959198C (de) | 1957-02-28 |
| GB790442A (en) | 1958-02-12 |
| FR1140388A (fr) | 1957-07-19 |
| US2909609A (en) | 1959-10-20 |
| NL96910C (no) |