JPH03120159U - - Google Patents

Info

Publication number
JPH03120159U
JPH03120159U JP10777289U JP10777289U JPH03120159U JP H03120159 U JPH03120159 U JP H03120159U JP 10777289 U JP10777289 U JP 10777289U JP 10777289 U JP10777289 U JP 10777289U JP H03120159 U JPH03120159 U JP H03120159U
Authority
JP
Japan
Prior art keywords
line
loudspeaker
detection means
wired telephone
bell sound
Prior art date
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.)
Pending
Application number
JP10777289U
Other languages
English (en)
Japanese (ja)
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 filed Critical
Priority to JP10777289U priority Critical patent/JPH03120159U/ja
Publication of JPH03120159U publication Critical patent/JPH03120159U/ja
Pending legal-status Critical Current

Links

JP10777289U 1989-09-14 1989-09-14 Pending JPH03120159U (cs)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10777289U JPH03120159U (cs) 1989-09-14 1989-09-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10777289U JPH03120159U (cs) 1989-09-14 1989-09-14

Publications (1)

Publication Number Publication Date
JPH03120159U true JPH03120159U (cs) 1991-12-10

Family

ID=31656449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10777289U Pending JPH03120159U (cs) 1989-09-14 1989-09-14

Country Status (1)

Country Link
JP (1) JPH03120159U (cs)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06121019A (ja) * 1992-10-08 1994-04-28 Toa Corp 拡声電話機
JP2018520270A (ja) * 2015-04-27 2018-07-26 マシーネンファブリク リーター アクチェンゲゼルシャフトＭａｓｃｈｉｎｅｎｆａｂｒｉｋ Ｒｉｅｔｅｒ ＡＧ 繊維機械の作業ユニットを操作する方法ならびに操作装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5937758A (ja) * 1982-08-26 1984-03-01 Hitoshi Ito 増幅回路
JPS60233968A (ja) * 1984-05-04 1985-11-20 Nec Corp 拡声呼出し電話機
JPS61184957A (ja) * 1985-02-12 1986-08-18 Oki Electric Ind Co Ltd 着信不応答回路
JPS6140061B2 (cs) * 1980-02-13 1986-09-06 Mitsubishi Genshiryoku Kogyo Kk

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6140061B2 (cs) * 1980-02-13 1986-09-06 Mitsubishi Genshiryoku Kogyo Kk
JPS5937758A (ja) * 1982-08-26 1984-03-01 Hitoshi Ito 増幅回路
JPS60233968A (ja) * 1984-05-04 1985-11-20 Nec Corp 拡声呼出し電話機
JPS61184957A (ja) * 1985-02-12 1986-08-18 Oki Electric Ind Co Ltd 着信不応答回路

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06121019A (ja) * 1992-10-08 1994-04-28 Toa Corp 拡声電話機
JP2018520270A (ja) * 2015-04-27 2018-07-26 マシーネンファブリク リーター アクチェンゲゼルシャフトＭａｓｃｈｉｎｅｎｆａｂｒｉｋ Ｒｉｅｔｅｒ ＡＧ 繊維機械の作業ユニットを操作する方法ならびに操作装置

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