JPH0451111B2 - - Google Patents

Info

Publication number
JPH0451111B2
JPH0451111B2 JP21230882A JP21230882A JPH0451111B2 JP H0451111 B2 JPH0451111 B2 JP H0451111B2 JP 21230882 A JP21230882 A JP 21230882A JP 21230882 A JP21230882 A JP 21230882A JP H0451111 B2 JPH0451111 B2 JP H0451111B2
Authority
JP
Japan
Legal status (The legal status 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 status listed.)
Expired
Application number
JP21230882A
Other versions
JPS59101954A (en
Inventor
Masaru Aoyanagi
Akihiko Tsukudai
Chikashi Hirota
Original Assignee
Nippon Denki Kk
Tokyoto Jutaku Kyokyu Kosha
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 Nippon Denki Kk, Tokyoto Jutaku Kyokyu Kosha filed Critical Nippon Denki Kk
Priority to JP21230882A priority Critical patent/JPH0451111B2/ja
Publication of JPS59101954A publication Critical patent/JPS59101954A/ja
Publication of JPH0451111B2 publication Critical patent/JPH0451111B2/ja
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M11/00Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
JP21230882A 1982-12-02 1982-12-02 Expired JPH0451111B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21230882A JPH0451111B2 (ja) 1982-12-02 1982-12-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21230882A JPH0451111B2 (ja) 1982-12-02 1982-12-02

Publications (2)

Publication Number Publication Date
JPS59101954A JPS59101954A (en) 1984-06-12
JPH0451111B2 true JPH0451111B2 (ja) 1992-08-18

Family

ID=16620407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21230882A Expired JPH0451111B2 (ja) 1982-12-02 1982-12-02

Country Status (1)

Country Link
JP (1) JPH0451111B2 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61269452A (en) * 1985-05-22 1986-11-28 Natsukusu:Kk Telephone set with warning device
JPS61269453A (en) * 1985-05-22 1986-11-28 Natsukusu:Kk Warning device using acoustic coupler
JPH0581584A (ja) * 1991-09-24 1993-04-02 Matsushita Electric Ind Co Ltd エレベータ用通話切り替え装置
JP6467452B2 (ja) * 2017-03-30 2019-02-13 三菱電機ビルテクノサービス株式会社 監視システム

Also Published As

Publication number Publication date
JPS59101954A (en) 1984-06-12

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