JPS6385938U - - Google Patents

Info

Publication number
JPS6385938U
JPS6385938U JP18134986U JP18134986U JPS6385938U JP S6385938 U JPS6385938 U JP S6385938U JP 18134986 U JP18134986 U JP 18134986U JP 18134986 U JP18134986 U JP 18134986U JP S6385938 U JPS6385938 U JP S6385938U
Authority
JP
Japan
Prior art keywords
telephone
terminal
door intercom
doorbell
wave rectifier
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.)
Granted
Application number
JP18134986U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0741234Y2 (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 JP1986181349U priority Critical patent/JPH0741234Y2/ja
Publication of JPS6385938U publication Critical patent/JPS6385938U/ja
Application granted granted Critical
Publication of JPH0741234Y2 publication Critical patent/JPH0741234Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
JP1986181349U 1986-11-26 1986-11-26 電話機用ドアホン接続回路 Expired - Lifetime JPH0741234Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986181349U JPH0741234Y2 (ja) 1986-11-26 1986-11-26 電話機用ドアホン接続回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986181349U JPH0741234Y2 (ja) 1986-11-26 1986-11-26 電話機用ドアホン接続回路

Publications (2)

Publication Number Publication Date
JPS6385938U true JPS6385938U (US06649357-20031118-C00005.png) 1988-06-04
JPH0741234Y2 JPH0741234Y2 (ja) 1995-09-20

Family

ID=31126139

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986181349U Expired - Lifetime JPH0741234Y2 (ja) 1986-11-26 1986-11-26 電話機用ドアホン接続回路

Country Status (1)

Country Link
JP (1) JPH0741234Y2 (US06649357-20031118-C00005.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114299677A (zh) * 2020-10-08 2022-04-08 和硕联合科技股份有限公司 门铃控制电路

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59133736A (ja) * 1983-01-20 1984-08-01 Ricoh Co Ltd 信号入出力装置
JPS61212953A (ja) * 1985-03-18 1986-09-20 Matsushita Electric Ind Co Ltd ドアホン付電話装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59133736A (ja) * 1983-01-20 1984-08-01 Ricoh Co Ltd 信号入出力装置
JPS61212953A (ja) * 1985-03-18 1986-09-20 Matsushita Electric Ind Co Ltd ドアホン付電話装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114299677A (zh) * 2020-10-08 2022-04-08 和硕联合科技股份有限公司 门铃控制电路
CN114299677B (zh) * 2020-10-08 2023-12-15 和硕联合科技股份有限公司 门铃控制电路

Also Published As

Publication number Publication date
JPH0741234Y2 (ja) 1995-09-20

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