KR880001225U - 출입문 개폐 신호장치 - Google Patents

출입문 개폐 신호장치

Info

Publication number
KR880001225U
KR880001225U KR2019860007931U KR860007931U KR880001225U KR 880001225 U KR880001225 U KR 880001225U KR 2019860007931 U KR2019860007931 U KR 2019860007931U KR 860007931 U KR860007931 U KR 860007931U KR 880001225 U KR880001225 U KR 880001225U
Authority
KR
South Korea
Prior art keywords
door opening
signal device
closing signal
closing
door
Prior art date
Application number
KR2019860007931U
Other languages
English (en)
Other versions
KR890003924Y1 (ko
Inventor
박재식
Original Assignee
박재식
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 박재식 filed Critical 박재식
Priority to KR2019860007931U priority Critical patent/KR890003924Y1/ko
Publication of KR880001225U publication Critical patent/KR880001225U/ko
Application granted granted Critical
Publication of KR890003924Y1 publication Critical patent/KR890003924Y1/ko

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
KR2019860007931U 1986-06-04 1986-06-04 출입문 개폐 신호장치 KR890003924Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019860007931U KR890003924Y1 (ko) 1986-06-04 1986-06-04 출입문 개폐 신호장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019860007931U KR890003924Y1 (ko) 1986-06-04 1986-06-04 출입문 개폐 신호장치

Publications (2)

Publication Number Publication Date
KR880001225U true KR880001225U (ko) 1988-02-23
KR890003924Y1 KR890003924Y1 (ko) 1989-06-10

Family

ID=19252425

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019860007931U KR890003924Y1 (ko) 1986-06-04 1986-06-04 출입문 개폐 신호장치

Country Status (1)

Country Link
KR (1) KR890003924Y1 (ko)

Also Published As

Publication number Publication date
KR890003924Y1 (ko) 1989-06-10

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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