KR910003569U - Multifunction interphone - Google Patents

Multifunction interphone

Info

Publication number
KR910003569U
KR910003569U KR2019890010675U KR890010675U KR910003569U KR 910003569 U KR910003569 U KR 910003569U KR 2019890010675 U KR2019890010675 U KR 2019890010675U KR 890010675 U KR890010675 U KR 890010675U KR 910003569 U KR910003569 U KR 910003569U
Authority
KR
South Korea
Prior art keywords
interphone
multifunction
multifunction interphone
Prior art date
Application number
KR2019890010675U
Other languages
Korean (ko)
Other versions
KR920004615Y1 (en
Inventor
이기운
Original Assignee
한국통신 주식회사
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 한국통신 주식회사 filed Critical 한국통신 주식회사
Priority to KR2019890010675U priority Critical patent/KR920004615Y1/en
Publication of KR910003569U publication Critical patent/KR910003569U/en
Application granted granted Critical
Publication of KR920004615Y1 publication Critical patent/KR920004615Y1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/02—Telephonic communication systems specially adapted for combination with other electrical systems with bell or annunciator systems
    • H04M11/025—Door telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties
KR2019890010675U 1989-07-22 1989-07-22 Multifunction interphone KR920004615Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019890010675U KR920004615Y1 (en) 1989-07-22 1989-07-22 Multifunction interphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019890010675U KR920004615Y1 (en) 1989-07-22 1989-07-22 Multifunction interphone

Publications (2)

Publication Number Publication Date
KR910003569U true KR910003569U (en) 1991-02-27
KR920004615Y1 KR920004615Y1 (en) 1992-07-06

Family

ID=19288455

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019890010675U KR920004615Y1 (en) 1989-07-22 1989-07-22 Multifunction interphone

Country Status (1)

Country Link
KR (1) KR920004615Y1 (en)

Also Published As

Publication number Publication date
KR920004615Y1 (en) 1992-07-06

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19961224

Year of fee payment: 12

EXPY Expiration of term