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AU963813B - Improvements in automatic telephone exchanges - Google Patents

Improvements in automatic telephone exchanges

Info

Publication number
AU963813B
AU963813B AU9638/13A AU963813A AU963813B AU 963813 B AU963813 B AU 963813B AU 9638/13 A AU9638/13 A AU 9638/13A AU 963813 A AU963813 A AU 963813A AU 963813 B AU963813 B AU 963813B
Authority
AU
Australia
Prior art keywords
automatic telephone
telephone exchanges
exchanges
automatic
telephone
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
AU9638/13A
Other versions
AU963813A (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.)
Frank Norris Reeves Alben Emmanuel Lundell
Original Assignee
Frank Norris Reeves Alben Emmanuel Lundell
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 Frank Norris Reeves Alben Emmanuel Lundell filed Critical Frank Norris Reeves Alben Emmanuel Lundell
Publication of AU963813A publication Critical patent/AU963813A/en
Publication of AU963813B publication Critical patent/AU963813B/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/006—Open cycle gas-turbine in which the working fluid is expanded to a pressure below the atmospheric pressure and then compressed to atmospheric pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Interface Circuits In Exchanges (AREA)
AU9638/13A 1912-07-05 1913-07-04 Improvements in automatic telephone exchanges Expired AU963813B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70781512A US1121666A (en) 1912-07-05 1912-07-05 Automatic telephone-exchange.

Publications (2)

Publication Number Publication Date
AU963813A AU963813A (en) 1913-07-06
AU963813B true AU963813B (en) 1914-01-13

Family

ID=3189826

Family Applications (1)

Application Number Title Priority Date Filing Date
AU9638/13A Expired AU963813B (en) 1912-07-05 1913-07-04 Improvements in automatic telephone exchanges

Country Status (3)

Country Link
US (1) US1121666A (en)
AU (1) AU963813B (en)
GB (1) GB191315579A (en)

Also Published As

Publication number Publication date
US1121666A (en) 1914-12-22
GB191315579A (en) 1914-02-12

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