KR910003567U - 전화기의 전용회선 시험장치 - Google Patents

전화기의 전용회선 시험장치

Info

Publication number
KR910003567U
KR910003567U KR2019890010244U KR890010244U KR910003567U KR 910003567 U KR910003567 U KR 910003567U KR 2019890010244 U KR2019890010244 U KR 2019890010244U KR 890010244 U KR890010244 U KR 890010244U KR 910003567 U KR910003567 U KR 910003567U
Authority
KR
South Korea
Prior art keywords
telephone line
test equipment
line test
equipment
telephone
Prior art date
Application number
KR2019890010244U
Other languages
English (en)
Other versions
KR920001540Y1 (ko
Inventor
박영일
Original Assignee
박영일
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 박영일 filed Critical 박영일
Priority to KR2019890010244U priority Critical patent/KR920001540Y1/ko
Publication of KR910003567U publication Critical patent/KR910003567U/ko
Application granted granted Critical
Publication of KR920001540Y1 publication Critical patent/KR920001540Y1/ko

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/24—Arrangements for testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/80—Telephone line holding circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/82—Line monitoring circuits for call progress or status discrimination

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
KR2019890010244U 1989-07-13 1989-07-13 전화기의 전용회선 시험장치 KR920001540Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019890010244U KR920001540Y1 (ko) 1989-07-13 1989-07-13 전화기의 전용회선 시험장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019890010244U KR920001540Y1 (ko) 1989-07-13 1989-07-13 전화기의 전용회선 시험장치

Publications (2)

Publication Number Publication Date
KR910003567U true KR910003567U (ko) 1991-02-27
KR920001540Y1 KR920001540Y1 (ko) 1992-03-05

Family

ID=19288221

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019890010244U KR920001540Y1 (ko) 1989-07-13 1989-07-13 전화기의 전용회선 시험장치

Country Status (1)

Country Link
KR (1) KR920001540Y1 (ko)

Also Published As

Publication number Publication date
KR920001540Y1 (ko) 1992-03-05

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Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20040305

Year of fee payment: 13

EXPY Expiration of term