KR880018719U - 키 텔레폰 시스템의 콘트롤박스 확장장치 - Google Patents

키 텔레폰 시스템의 콘트롤박스 확장장치

Info

Publication number
KR880018719U
KR880018719U KR2019870003177U KR870003177U KR880018719U KR 880018719 U KR880018719 U KR 880018719U KR 2019870003177 U KR2019870003177 U KR 2019870003177U KR 870003177 U KR870003177 U KR 870003177U KR 880018719 U KR880018719 U KR 880018719U
Authority
KR
South Korea
Prior art keywords
control box
expansion device
telephony system
box expansion
key
Prior art date
Application number
KR2019870003177U
Other languages
English (en)
Other versions
KR900002127Y1 (ko
Inventor
김덕중
Original Assignee
금성통신주식회사
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 금성통신주식회사 filed Critical 금성통신주식회사
Priority to KR2019870003177U priority Critical patent/KR900002127Y1/ko
Publication of KR880018719U publication Critical patent/KR880018719U/ko
Application granted granted Critical
Publication of KR900002127Y1 publication Critical patent/KR900002127Y1/ko

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Casings For Electric Apparatus (AREA)
KR2019870003177U 1987-03-12 1987-03-12 키 텔레폰 시스템의 콘트롤박스 확장장치 KR900002127Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870003177U KR900002127Y1 (ko) 1987-03-12 1987-03-12 키 텔레폰 시스템의 콘트롤박스 확장장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870003177U KR900002127Y1 (ko) 1987-03-12 1987-03-12 키 텔레폰 시스템의 콘트롤박스 확장장치

Publications (2)

Publication Number Publication Date
KR880018719U true KR880018719U (ko) 1988-10-29
KR900002127Y1 KR900002127Y1 (ko) 1990-03-15

Family

ID=19260521

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870003177U KR900002127Y1 (ko) 1987-03-12 1987-03-12 키 텔레폰 시스템의 콘트롤박스 확장장치

Country Status (1)

Country Link
KR (1) KR900002127Y1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101912319B1 (ko) * 2016-12-28 2018-10-26 한국항로표지기술원 등명기 통합제어시스템용 케이스

Also Published As

Publication number Publication date
KR900002127Y1 (ko) 1990-03-15

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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
LAPS Lapse due to unpaid annual fee