NL251581A - - Google Patents

Info

Publication number
NL251581A
NL251581A NL251581A NL251581A NL251581A NL 251581 A NL251581 A NL 251581A NL 251581 A NL251581 A NL 251581A NL 251581 A NL251581 A NL 251581A NL 251581 A NL251581 A NL 251581A
Authority
NL
Netherlands
Application number
NL251581A
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.)
Filing date
Publication date
Application filed filed Critical
Publication of NL251581A publication Critical patent/NL251581A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)
NL251581A 1959-05-15 1960-05-13 NL251581A (US07368563-20080506-C00056.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE467959 1959-05-15

Publications (1)

Publication Number Publication Date
NL251581A true NL251581A (US07368563-20080506-C00056.png) 1964-02-25

Family

ID=20264723

Family Applications (1)

Application Number Title Priority Date Filing Date
NL251581A NL251581A (US07368563-20080506-C00056.png) 1959-05-15 1960-05-13

Country Status (7)

Country Link
US (1) US3222458A (US07368563-20080506-C00056.png)
BE (1) BE590793A (US07368563-20080506-C00056.png)
DE (1) DE1109743B (US07368563-20080506-C00056.png)
DK (1) DK96797C (US07368563-20080506-C00056.png)
FR (1) FR1260858A (US07368563-20080506-C00056.png)
GB (1) GB946076A (US07368563-20080506-C00056.png)
NL (1) NL251581A (US07368563-20080506-C00056.png)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1925681A (en) * 1931-08-04 1933-09-05 Western Electric Co Telephone system
US2151767A (en) * 1936-08-04 1939-03-28 Bell Telephone Labor Inc Telephone system
US2621257A (en) * 1945-12-03 1952-12-09 Automatic Elect Lab Relay automatic telephone system
BE513206A (US07368563-20080506-C00056.png) * 1949-12-28
US2717923A (en) * 1951-06-05 1955-09-13 Stromberg Carlson Co Code call circuit

Also Published As

Publication number Publication date
DK96797C (da) 1963-09-02
FR1260858A (fr) 1961-05-12
BE590793A (fr) 1960-09-01
US3222458A (en) 1965-12-07
GB946076A (en) 1964-01-08
DE1109743B (de) 1961-06-29

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