NL7828C - - Google Patents

Info

Publication number: NL7828C
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.)

1918-02-04

Publication of NL7828C publication Critical patent/NL7828C/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

Landscapes

Physics & Mathematics (AREA)
Astronomy & Astrophysics (AREA)
General Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Interface Circuits In Exchanges (AREA)
Sub-Exchange Stations And Push- Button Telephones (AREA)

NL7828D 1918-02-04 NL7828C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US215235A US1435249A (en)	1918-02-04	1918-02-04	Automatic telephone system

Publications (1)

Publication Number	Publication Date
NL7828C true NL7828C (enrdf_load_stackoverflow)

Family

ID=22802193

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7828D NL7828C (enrdf_load_stackoverflow)	1918-02-04

Country Status (5)

Country	Link
US (1)	US1435249A (enrdf_load_stackoverflow)
DE (1)	DE393560C (enrdf_load_stackoverflow)
FR (1)	FR495450A (enrdf_load_stackoverflow)
GB (1)	GB123053A (enrdf_load_stackoverflow)
NL (1)	NL7828C (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE765694C (de) *	1933-05-13	1953-02-23	Siemens & Halske A G	Schaltungsanordnung zur Kennzeichnung verschiedener Verkehrsrichtungen in Fernsprechanlagen

0
- NL NL7828D patent/NL7828C/xx active
- DE DENDAT393560D patent/DE393560C/de active Active
1918
- 1918-02-04 US US215235A patent/US1435249A/en not_active Expired - Lifetime
- 1918-09-23 GB GB15434/18A patent/GB123053A/en not_active Expired
1919
- 1919-02-03 FR FR495450A patent/FR495450A/fr not_active Expired

Also Published As

Publication number	Publication date
GB123053A (en)	1919-04-03
FR495450A (fr)	1919-10-08
DE393560C (enrdf_load_stackoverflow)
US1435249A (en)	1922-11-14

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