GB251335A - Improvements in telephone exchange systems - Google Patents

Improvements in telephone exchange systems

Info

Publication number
GB251335A
GB251335A GB253425A GB253425A GB251335A GB 251335 A GB251335 A GB 251335A GB 253425 A GB253425 A GB 253425A GB 253425 A GB253425 A GB 253425A GB 251335 A GB251335 A GB 251335A
Authority
GB
United Kingdom
Prior art keywords
armature
meter
winding
circuit
magnet
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
GB253425A
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.)
LOUIS JEP JOSEPH SCHREIBER
Original Assignee
LOUIS JEP JOSEPH SCHREIBER
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
Priority to NL18444D priority Critical patent/NL18444C/xx
Application filed by LOUIS JEP JOSEPH SCHREIBER filed Critical LOUIS JEP JOSEPH SCHREIBER
Priority to GB253425A priority patent/GB251335A/en
Priority to CH116918D priority patent/CH116918A/de
Priority to FR602773D priority patent/FR602773A/fr
Publication of GB251335A publication Critical patent/GB251335A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/10—Metering calls from calling party, i.e. A-party charged for the communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
GB253425A 1925-01-28 1925-01-28 Improvements in telephone exchange systems Expired GB251335A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL18444D NL18444C (enrdf_load_stackoverflow) 1925-01-28
GB253425A GB251335A (en) 1925-01-28 1925-01-28 Improvements in telephone exchange systems
CH116918D CH116918A (de) 1925-01-28 1925-07-31 Zähler für Fernsprechanlagen.
FR602773D FR602773A (fr) 1925-01-28 1925-08-31 Perfectionnements aux systèmes téléphoniques pour bureaux centraux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB253425A GB251335A (en) 1925-01-28 1925-01-28 Improvements in telephone exchange systems

Publications (1)

Publication Number Publication Date
GB251335A true GB251335A (en) 1926-04-28

Family

ID=9741252

Family Applications (1)

Application Number Title Priority Date Filing Date
GB253425A Expired GB251335A (en) 1925-01-28 1925-01-28 Improvements in telephone exchange systems

Country Status (4)

Country Link
CH (1) CH116918A (enrdf_load_stackoverflow)
FR (1) FR602773A (enrdf_load_stackoverflow)
GB (1) GB251335A (enrdf_load_stackoverflow)
NL (1) NL18444C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR602773A (fr) 1926-03-26
CH116918A (de) 1926-10-01
NL18444C (enrdf_load_stackoverflow)

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