KR880018720U - 전화기의 자동 경보장치 - Google Patents

전화기의 자동 경보장치

Info

Publication number
KR880018720U
KR880018720U KR2019870003997U KR870003997U KR880018720U KR 880018720 U KR880018720 U KR 880018720U KR 2019870003997 U KR2019870003997 U KR 2019870003997U KR 870003997 U KR870003997 U KR 870003997U KR 880018720 U KR880018720 U KR 880018720U
Authority
KR
South Korea
Prior art keywords
automatic telephone
telephone alarm
alarm
automatic
telephone
Prior art date
Application number
KR2019870003997U
Other languages
English (en)
Other versions
KR900006417Y1 (ko
Inventor
이대수
Original Assignee
박 월터남
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 박 월터남 filed Critical 박 월터남
Priority to KR2019870003997U priority Critical patent/KR900006417Y1/ko
Publication of KR880018720U publication Critical patent/KR880018720U/ko
Application granted granted Critical
Publication of KR900006417Y1 publication Critical patent/KR900006417Y1/ko

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Alarm Systems (AREA)
KR2019870003997U 1987-03-27 1987-03-27 전화기의 자동 경보장치 KR900006417Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870003997U KR900006417Y1 (ko) 1987-03-27 1987-03-27 전화기의 자동 경보장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870003997U KR900006417Y1 (ko) 1987-03-27 1987-03-27 전화기의 자동 경보장치

Publications (2)

Publication Number Publication Date
KR880018720U true KR880018720U (ko) 1988-10-29
KR900006417Y1 KR900006417Y1 (ko) 1990-07-20

Family

ID=19260958

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870003997U KR900006417Y1 (ko) 1987-03-27 1987-03-27 전화기의 자동 경보장치

Country Status (1)

Country Link
KR (1) KR900006417Y1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102083006B1 (ko) * 2018-10-04 2020-03-02 (주)에스에므 비상시 전화발신장치

Also Published As

Publication number Publication date
KR900006417Y1 (ko) 1990-07-20

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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
NORF Unpaid initial registration fee