JPS51144503A - Telephone set - Google Patents

Telephone set

Info

Publication number
JPS51144503A
JPS51144503A JP50068751A JP6875175A JPS51144503A JP S51144503 A JPS51144503 A JP S51144503A JP 50068751 A JP50068751 A JP 50068751A JP 6875175 A JP6875175 A JP 6875175A JP S51144503 A JPS51144503 A JP S51144503A
Authority
JP
Japan
Prior art keywords
telephone set
call
line
office line
pluralmf
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.)
Granted
Application number
JP50068751A
Other languages
Japanese (ja)
Other versions
JPS5756826B2 (en
Inventor
Yasuhiro Ono
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.)
Iwatsu Electric Co Ltd
Iwasaki Tsushinki KK
Original Assignee
Iwatsu Electric Co Ltd
Iwasaki Tsushinki KK
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 Iwatsu Electric Co Ltd, Iwasaki Tsushinki KK filed Critical Iwatsu Electric Co Ltd
Priority to JP50068751A priority Critical patent/JPS51144503A/en
Publication of JPS51144503A publication Critical patent/JPS51144503A/en
Publication of JPS5756826B2 publication Critical patent/JPS5756826B2/ja
Granted 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
    • H04M1/71—Substation extension arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:Easily discriminating a call from the office line from a call from the extension line, in a subscriber having pluralMF dial type telephones for commonly using the office line.
JP50068751A 1975-06-06 1975-06-06 Telephone set Granted JPS51144503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50068751A JPS51144503A (en) 1975-06-06 1975-06-06 Telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50068751A JPS51144503A (en) 1975-06-06 1975-06-06 Telephone set

Publications (2)

Publication Number Publication Date
JPS51144503A true JPS51144503A (en) 1976-12-11
JPS5756826B2 JPS5756826B2 (en) 1982-12-01

Family

ID=13382774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50068751A Granted JPS51144503A (en) 1975-06-06 1975-06-06 Telephone set

Country Status (1)

Country Link
JP (1) JPS51144503A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6184733U (en) * 1984-11-08 1986-06-04
JPS635034U (en) * 1986-06-25 1988-01-13

Also Published As

Publication number Publication date
JPS5756826B2 (en) 1982-12-01

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