NL24569C - - Google Patents

Info

Publication number: NL24569C
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.)

1927-03-01

Publication of NL24569C publication Critical patent/NL24569C/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Monitoring And Testing Of Exchanges (AREA)

NL24569D 1927-03-01 NL24569C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB572727A GB291510A (en)	1927-03-01	1927-03-01	Improvements in or relating to telephone systems

Publications (1)

Publication Number	Publication Date
NL24569C true NL24569C (enrdf_load_stackoverflow)

Family

ID=9801486

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL24569D NL24569C (enrdf_load_stackoverflow)	1927-03-01

Country Status (4)

Country	Link
BE (1)	BE340841A (enrdf_load_stackoverflow)
FR (1)	FR636698A (enrdf_load_stackoverflow)
GB (1)	GB291510A (enrdf_load_stackoverflow)
NL (1)	NL24569C (enrdf_load_stackoverflow)

0
- NL NL24569D patent/NL24569C/xx active
- FR FR636698D patent/FR636698A/fr not_active Expired
- BE BE340841D patent/BE340841A/xx unknown
1927
- 1927-03-01 GB GB572727A patent/GB291510A/en not_active Expired

Also Published As

Publication number	Publication date
GB291510A (en)	1928-06-01
FR636698A (enrdf_load_stackoverflow)	1928-04-14
BE340841A (enrdf_load_stackoverflow)

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