AT131495B - Circuit arrangement for telephone systems with dialer operation and several exchanges. - Google Patents

Circuit arrangement for telephone systems with dialer operation and several exchanges.

Info

Publication number: AT131495B
Authority: AT; Austria
Prior art keywords: circuit arrangement; telephone systems; several exchanges; dialer operation; dialer
Prior art date: 1931-04-23

Application number

Other languages

Original Assignee

Siemens Ag

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.)

1931-04-23

Filing date

1931-06-02

Publication date

1933-01-25

1931-06-02 Application filed by Siemens Ag filed Critical Siemens Ag

1933-01-25 Application granted granted Critical

1933-01-25 Publication of AT131495B publication Critical patent/AT131495B/en

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Interface Circuits In Exchanges (AREA)

AT131495D 1931-04-23 1931-06-02 Circuit arrangement for telephone systems with dialer operation and several exchanges. AT131495B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DES98196D DE615685C (en)	1931-04-23	1931-04-23	Circuit arrangement for telephone systems with dialer operation and several exchanges in series
DES98220D DE632175C (en)	1931-04-23	1931-04-24	Circuit arrangement for telephone systems with dialer operation and several exchanges

Publications (1)

Publication Number	Publication Date
AT131495B true AT131495B (en)	1933-01-25

Family

ID=25998178

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT131495D AT131495B (en)	1931-04-23	1931-06-02	Circuit arrangement for telephone systems with dialer operation and several exchanges.

Country Status (4)

Country	Link
US (1)	US1930522A (en)
AT (1)	AT131495B (en)
DE (2)	DE615685C (en)
FR (2)	FR717424A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE756194C (en) *	1942-02-11	1953-02-16	Siemens & Halske A G	Circuit arrangement for establishing connections in telephone networks with several consecutive Ameters
US2556103A (en) *	1946-11-09	1951-06-05	Associated Electric Lab Inc	Switching arrangement for combined manual and automatic telephone systems
FR956491A (en) *	1947-09-13	1950-02-02
US2871297A (en) *	1954-03-08	1959-01-27	Itt	100-line direct-access crossbar telephone switching unit
ES2152123B1 (en) *	1997-01-24	2001-08-01	Pajarron Lopez Sors Jose	REMOVABLE LIGHTWEIGHT COVER FOR SPORTS ENCLOSURES.

1931
- 1931-04-23 DE DES98196D patent/DE615685C/en not_active Expired
- 1931-04-24 DE DES98220D patent/DE632175C/en not_active Expired
- 1931-05-21 FR FR717424D patent/FR717424A/en not_active Expired
- 1931-05-21 FR FR717423D patent/FR717423A/en not_active Expired
- 1931-06-02 AT AT131495D patent/AT131495B/en active
1932
- 1932-03-19 US US599918A patent/US1930522A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US1930522A (en)	1933-10-17
DE615685C (en)	1935-07-16
FR717423A (en)	1931-01-06
FR717424A (en)	1932-01-08
DE632175C (en)	1936-07-08

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