NL116168B - - Google Patents

Info

Publication number: NL116168B
Authority: NL; Netherlands

Application number

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1943-12-22

Publication of NL116168B publication Critical patent/NL116168B/xx

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
- H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
- H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/42—Circuits for by-passing of ringing signals

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)

NL116168D 1943-12-22 NL116168B (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR986988T		1943-12-22

Publications (1)

Publication Number	Publication Date
NL116168B true NL116168B (enrdf_load_stackoverflow)

Family

ID=9538574

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
NL60456D NL60456C (enrdf_load_stackoverflow)	1943-12-22
NL116168D NL116168B (enrdf_load_stackoverflow)	1943-12-22

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
NL60456D NL60456C (enrdf_load_stackoverflow)	1943-12-22

Country Status (3)

Country	Link
CH (1)	CH270404A (enrdf_load_stackoverflow)
FR (1)	FR986988A (enrdf_load_stackoverflow)
NL (2)	NL116168B (enrdf_load_stackoverflow)

0
- NL NL60456D patent/NL60456C/xx active
- NL NL116168D patent/NL116168B/xx unknown
1943
- 1943-12-22 FR FR986988D patent/FR986988A/fr not_active Expired
1947
- 1947-08-25 CH CH270404D patent/CH270404A/fr unknown

Also Published As

Publication number	Publication date
NL60456C (enrdf_load_stackoverflow)
CH270404A (fr)	1950-08-31
FR986988A (fr)	1951-08-07

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