NL52553C - - Google Patents

Info

Publication number: NL52553C
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.)

1936-09-28

Publication of NL52553C publication Critical patent/NL52553C/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
- H04Q3/625—Arrangements in the private branch exchange

NL52553D 1936-09-28 NL52553C (xx)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE199333X		1936-09-28

Publications (1)

Publication Number	Publication Date
NL52553C true NL52553C (xx)

Family

ID=20304846

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL52553D NL52553C (xx)	1936-09-28

Country Status (5)

Country	Link
US (1)	US2220423A (xx)
CH (1)	CH199333A (xx)
DE (1)	DE684063C (xx)
FR (1)	FR827166A (xx)
NL (1)	NL52553C (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL259386A (xx) *	1959-12-23
BE622151A (xx) *	1961-09-05
US3215784A (en) *	1961-12-22	1965-11-02	Bell Telephone Labor Inc	Multicustomer private branch exchange
GB1084099A (xx) *	1963-12-20

0
- NL NL52553D patent/NL52553C/xx active
1937
- 1937-03-24 DE DET48398D patent/DE684063C/de not_active Expired
- 1937-09-25 CH CH199333D patent/CH199333A/de unknown
- 1937-09-27 FR FR827166D patent/FR827166A/fr not_active Expired
- 1937-09-27 US US166003A patent/US2220423A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
DE684063C (de)	1939-11-22
FR827166A (fr)	1938-04-20
US2220423A (en)	1940-11-05
CH199333A (de)	1938-08-15

Publication	Publication Date	Title
BE415900A (xx)	1936-07-31
BE414157A (xx)
BE415224A (xx)
BE413460A (xx)
BE413631A (xx)
BE413397A (xx)	1936-02-29
BE413706A (xx)
BE414076A (xx)
BE413759A (xx)	1936-03-31
BE413893A (xx)
NL53363C (xx)
NL52041C (xx)
NL51557C (xx)
NL49961C (xx)
BE425513A (xx)
BE416312A (xx)
BE416290A (xx)
BE416271A (xx)
BE416111A (xx)
BE416030A (xx)	1936-07-31
BE415974A (xx)
BE413384A (xx)
BE415761A (xx)
BE415752A (xx)
BE415731A (xx)