GB409015A - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
GB409015A
GB409015A GB29605/32A GB2960532A GB409015A GB 409015 A GB409015 A GB 409015A GB 29605/32 A GB29605/32 A GB 29605/32A GB 2960532 A GB2960532 A GB 2960532A GB 409015 A GB409015 A GB 409015A
Authority
GB
United Kingdom
Prior art keywords
groups
relay
over
magnet
impulse
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB29605/32A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AUTOMATIC ELECTRIC CO Ltd
Original Assignee
AUTOMATIC ELECTRIC CO Ltd
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 by AUTOMATIC ELECTRIC CO Ltd filed Critical AUTOMATIC ELECTRIC CO Ltd
Publication of GB409015A publication Critical patent/GB409015A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Keying Circuit Devices (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
GB29605/32A 1931-11-09 1932-10-22 Improvements in or relating to telephone systems Expired GB409015A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US573760A US1914384A (en) 1931-11-09 1931-11-09 Telephone system

Publications (1)

Publication Number Publication Date
GB409015A true GB409015A (en) 1934-04-23

Family

ID=24293290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29605/32A Expired GB409015A (en) 1931-11-09 1932-10-22 Improvements in or relating to telephone systems

Country Status (3)

Country Link
US (1) US1914384A (US07709020-20100504-C00041.png)
FR (1) FR744372A (US07709020-20100504-C00041.png)
GB (1) GB409015A (US07709020-20100504-C00041.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969247C (de) * 1955-05-27 1958-05-14 Siemens Ag Schaltungsanordnung fuer durch Nummernstromstoesse einzustellende Waehler mit einer Bewegungsrichtung in Fernmeldeanlagen, insbesondere Fernsprechanlagen
US5224588A (en) * 1991-04-15 1993-07-06 Ford Motor Company Plunger switch providing relief for an excess plunger load

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB592371A (en) * 1945-05-04 1947-09-16 Siemens Brothers & Co Ltd Improvements relating to automatic telephone systems
GB593050A (en) * 1945-05-04 1947-10-07 Siemens Brothers & Co Ltd Improvements relating to automatic telephone systems
GB593049A (en) * 1945-05-04 1947-10-07 Siemens Brothers & Co Ltd Improvements relating to automatic telephone systems
GB605131A (en) * 1945-12-14 1948-07-16 Siemens Brothers & Co Ltd Improvements relating to telephone and like selective systems
BE474194A (US07709020-20100504-C00041.png) * 1946-01-30
US2583782A (en) * 1948-01-21 1952-01-29 Automatic Elect Lab Party line connector circuit for code ringing
FR996361A (US07709020-20100504-C00041.png) * 1948-10-25 1951-12-17
GB657077A (en) * 1948-11-11 1951-09-12 Automatic Telephone & Elect Improvements in or relating to automatic switches as used in telephone systems
NL149217B (nl) * 1949-10-07 Cassella Farbwerke Mainkur Ag Werkwijze ter bereiding van alkydharsvrije bindmiddelen voor in de hitte hardbare bekledingen.
US2845493A (en) * 1949-11-26 1958-07-29 Siemens Ag Control of telephone switches having plurality of simultaneously operated sets of wipers
BE527777A (US07709020-20100504-C00041.png) * 1953-04-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969247C (de) * 1955-05-27 1958-05-14 Siemens Ag Schaltungsanordnung fuer durch Nummernstromstoesse einzustellende Waehler mit einer Bewegungsrichtung in Fernmeldeanlagen, insbesondere Fernsprechanlagen
US5224588A (en) * 1991-04-15 1993-07-06 Ford Motor Company Plunger switch providing relief for an excess plunger load

Also Published As

Publication number Publication date
FR744372A (US07709020-20100504-C00041.png) 1933-04-19
US1914384A (en) 1933-06-20

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