NL83809C - - Google Patents
Info
- Publication number
- NL83809C NL83809C NL83809DA NL83809C NL 83809 C NL83809 C NL 83809C NL 83809D A NL83809D A NL 83809DA NL 83809 C NL83809 C NL 83809C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
-
- 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
- H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
- H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1605051A GB709399A (en) | 1951-07-06 | 1951-07-06 | Improvements in or relating to telephone systems |
Publications (1)
Publication Number | Publication Date |
---|---|
NL83809C true NL83809C (de) |
Family
ID=10070232
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL83809D NL83809C (de) | 1951-07-06 | ||
NLAANVRAGE7304757,B NL170585B (nl) | 1951-07-06 | Kleurentelevisieontvanger met een kleurverzadigingsdetektieketen en een daardoor bestuurde kleurverschilsignaalbewerkingsketen. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE7304757,B NL170585B (nl) | 1951-07-06 | Kleurentelevisieontvanger met een kleurverzadigingsdetektieketen en een daardoor bestuurde kleurverschilsignaalbewerkingsketen. |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE512649A (de) |
GB (2) | GB709406A (de) |
NL (2) | NL170585B (de) |
-
0
- NL NL83809D patent/NL83809C/xx active
- NL NLAANVRAGE7304757,B patent/NL170585B/xx unknown
- BE BE512649D patent/BE512649A/xx unknown
-
1951
- 1951-07-06 GB GB1971053A patent/GB709406A/en not_active Expired
- 1951-07-06 GB GB1605051A patent/GB709399A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB709406A (en) | 1954-05-26 |
BE512649A (de) | |
NL170585B (nl) | |
GB709399A (en) | 1954-05-26 |