NL274439A - - Google Patents
Info
- Publication number
- NL274439A NL274439A NL274439DA NL274439A NL 274439 A NL274439 A NL 274439A NL 274439D A NL274439D A NL 274439DA NL 274439 A NL274439 A NL 274439A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
Landscapes
- Chemical & Material Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Signal Processing (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Dc Digital Transmission (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7041960A | 1960-11-21 | 1960-11-21 | |
| US89831A US3165583A (en) | 1960-11-21 | 1961-02-16 | Two-tone transmission system for digital data |
| US155861A US3142723A (en) | 1961-11-29 | 1961-11-29 | Frequency shift keying system |
| US24292562A | 1962-12-07 | 1962-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL274439A true NL274439A (da) |
Family
ID=27490825
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL274439D NL274439A (da) | 1960-11-21 | ||
| NL285920A NL285920A (da) | 1960-11-21 | 1962-11-26 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL285920A NL285920A (da) | 1960-11-21 | 1962-11-26 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE625435A (da) |
| DE (2) | DE1217997B (da) |
| GB (4) | GB923840A (da) |
| NL (2) | NL285920A (da) |
| SE (1) | SE307383B (da) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63180294A (ja) * | 1987-01-22 | 1988-07-25 | Man Design Kk | 測定デ−タ送信装置 |
-
0
- NL NL274439D patent/NL274439A/xx unknown
-
1961
- 1961-10-24 GB GB3801561A patent/GB923840A/en not_active Expired
-
1962
- 1962-01-25 GB GB278862A patent/GB923955A/en not_active Expired
- 1962-02-03 DE DEW31609A patent/DE1217997B/de active Pending
- 1962-11-15 GB GB4319062A patent/GB1026806A/en not_active Expired
- 1962-11-26 DE DEW33395A patent/DE1226142B/de active Pending
- 1962-11-26 NL NL285920A patent/NL285920A/xx unknown
- 1962-11-28 BE BE625435D patent/BE625435A/fr unknown
- 1962-11-29 SE SE1286362A patent/SE307383B/xx unknown
-
1963
- 1963-11-19 GB GB4558863A patent/GB993485A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB923840A (en) | 1963-04-18 |
| GB993485A (en) | 1965-05-26 |
| DE1217997B (de) | 1966-06-02 |
| NL285920A (da) | 1965-02-10 |
| DE1226142B (de) | 1966-10-06 |
| SE307383B (da) | 1969-01-07 |
| GB1026806A (en) | 1966-04-20 |
| GB923955A (en) | 1963-04-18 |
| BE625435A (da) | 1963-03-15 |