NL73400C - - Google Patents
Info
- Publication number
- NL73400C NL73400C NL73400DA NL73400C NL 73400 C NL73400 C NL 73400C NL 73400D A NL73400D A NL 73400DA NL 73400 C NL73400 C NL 73400C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE277497X | 1948-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL73400C true NL73400C (es) |
Family
ID=20306925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL73400D NL73400C (es) | 1948-02-05 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2542592A (es) |
| CH (1) | CH277497A (es) |
| FR (1) | FR980185A (es) |
| GB (1) | GB670095A (es) |
| NL (1) | NL73400C (es) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE918512C (de) * | 1951-04-10 | 1954-09-27 | Philips Nv | Schaltungsanordnung zum UEbertragen von Nummernscheibensignalen |
| US2717279A (en) * | 1951-12-28 | 1955-09-06 | Bell Telephone Labor Inc | Multiparty selective signaling and identification system |
| US2710953A (en) * | 1952-07-29 | 1955-06-14 | Westinghouse Air Brake Co | High selectivity resonant circuits |
| US2853558A (en) * | 1953-02-21 | 1958-09-23 | Int Standard Electric Corp | Selective call receiver |
| DE1007816B (de) * | 1953-08-18 | 1957-05-09 | Josef Dirr | Schaltungsanordnung zur Steuerung von Waehlern durch Wechselstroeme |
| US2944112A (en) * | 1954-03-15 | 1960-07-05 | Telephony | |
| US2932694A (en) * | 1954-09-10 | 1960-04-12 | Bell Telephone Labor Inc | Rural carrier telephone transmission system |
| NL96910C (es) * | 1954-10-25 | |||
| US3043988A (en) * | 1955-04-27 | 1962-07-10 | Hurvitz Hyman | Two-dimensional displays |
| US2929880A (en) * | 1955-10-24 | 1960-03-22 | Ralph D Collins | Subset identification gate circuit |
| US3072747A (en) * | 1958-05-27 | 1963-01-08 | Ass Elect Ind Woolwich Ltd | Pulse signalling systems |
| NL242116A (es) * | 1958-11-03 | |||
| US3060275A (en) * | 1958-11-07 | 1962-10-23 | Bell Telephone Labor Inc | Telephone system signaling |
| US3187107A (en) * | 1960-03-04 | 1965-06-01 | Int Standard Electric Corp | Voice-frequency key-dialing subscriber's station |
| US3131264A (en) * | 1960-04-13 | 1964-04-28 | Int Standard Electric Corp | Multi-frequency signalling receivers |
| US3100245A (en) * | 1960-11-03 | 1963-08-06 | Nathan W Feldman | Keysender frequency selector |
| NL276415A (es) * | 1961-03-25 | |||
| US3205311A (en) * | 1961-05-17 | 1965-09-07 | Ibm | Multiplexing and communication system with highly damped gated signal generator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2039404A (en) * | 1933-03-21 | 1936-05-05 | American Telephone & Telegraph | Remote metering system |
| US2379614A (en) * | 1942-03-27 | 1945-07-03 | Rca Corp | Frequency modulation |
| BE462165A (es) * | 1944-12-04 |
-
0
- NL NL73400D patent/NL73400C/xx active
-
1949
- 1949-01-26 US US72971A patent/US2542592A/en not_active Expired - Lifetime
- 1949-01-29 CH CH277497D patent/CH277497A/de unknown
- 1949-02-04 GB GB3148/49A patent/GB670095A/en not_active Expired
- 1949-02-05 FR FR980185D patent/FR980185A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB670095A (en) | 1952-04-16 |
| CH277497A (de) | 1951-08-31 |
| FR980185A (fr) | 1951-05-09 |
| US2542592A (en) | 1951-02-20 |