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AU433644B2 - Improvements in automatic telephone dials - Google Patents
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AU433644B2 - Improvements in automatic telephone dials - Google Patents

Improvements in automatic telephone dials

Info

Publication number
AU433644B2
AU433644B2 AU47945/68A AU4794568A AU433644B2 AU 433644 B2 AU433644 B2 AU 433644B2 AU 47945/68 A AU47945/68 A AU 47945/68A AU 4794568 A AU4794568 A AU 4794568A AU 433644 B2 AU433644 B2 AU 433644B2
Authority
AU
Australia
Prior art keywords
automatic telephone
telephone dials
dials
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
AU47945/68A
Other versions
AU4794568A (en
Inventor
William Brumfield Douglas
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.)
Amalgamated Wireless Australasia Ltd
Original Assignee
Amalgamated Wireless Australasia 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 Amalgamated Wireless Australasia Ltd filed Critical Amalgamated Wireless Australasia Ltd
Priority to AU47945/68A priority Critical patent/AU433644B2/en
Publication of AU4794568A publication Critical patent/AU4794568A/en
Application granted granted Critical
Publication of AU433644B2 publication Critical patent/AU433644B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H04M1/315—Clutches; Spring assemblies; Speed regulators, e.g. centrifugal brakes

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
AU47945/68A 1969-07-16 1969-07-16 Improvements in automatic telephone dials Expired AU433644B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU47945/68A AU433644B2 (en) 1969-07-16 1969-07-16 Improvements in automatic telephone dials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU47945/68A AU433644B2 (en) 1969-07-16 1969-07-16 Improvements in automatic telephone dials

Publications (2)

Publication Number Publication Date
AU4794568A AU4794568A (en) 1971-01-21
AU433644B2 true AU433644B2 (en) 1973-03-12

Family

ID=3734710

Family Applications (1)

Application Number Title Priority Date Filing Date
AU47945/68A Expired AU433644B2 (en) 1969-07-16 1969-07-16 Improvements in automatic telephone dials

Country Status (1)

Country Link
AU (1) AU433644B2 (en)

Also Published As

Publication number Publication date
AU4794568A (en) 1971-01-21

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