JPH0628868Y2 - 宅内交換機におけるドアホン呼出装置 - Google Patents

宅内交換機におけるドアホン呼出装置

Info

Publication number
JPH0628868Y2
JPH0628868Y2 JP1989124658U JP12465889U JPH0628868Y2 JP H0628868 Y2 JPH0628868 Y2 JP H0628868Y2 JP 1989124658 U JP1989124658 U JP 1989124658U JP 12465889 U JP12465889 U JP 12465889U JP H0628868 Y2 JPH0628868 Y2 JP H0628868Y2
Authority
JP
Japan
Prior art keywords
intercom
base unit
call
ringing tone
doorphone
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.)
Expired - Lifetime
Application number
JP1989124658U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0366277U (US20110009641A1-20110113-C00185.png
Inventor
博 熊谷
義之 山添
勤 中村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Radio Co Ltd
Original Assignee
Japan Radio Co Ltd
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 Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Priority to JP1989124658U priority Critical patent/JPH0628868Y2/ja
Publication of JPH0366277U publication Critical patent/JPH0366277U/ja
Application granted granted Critical
Publication of JPH0628868Y2 publication Critical patent/JPH0628868Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP1989124658U 1989-10-25 1989-10-25 宅内交換機におけるドアホン呼出装置 Expired - Lifetime JPH0628868Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989124658U JPH0628868Y2 (ja) 1989-10-25 1989-10-25 宅内交換機におけるドアホン呼出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989124658U JPH0628868Y2 (ja) 1989-10-25 1989-10-25 宅内交換機におけるドアホン呼出装置

Publications (2)

Publication Number Publication Date
JPH0366277U JPH0366277U (US20110009641A1-20110113-C00185.png) 1991-06-27
JPH0628868Y2 true JPH0628868Y2 (ja) 1994-08-03

Family

ID=31672565

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989124658U Expired - Lifetime JPH0628868Y2 (ja) 1989-10-25 1989-10-25 宅内交換機におけるドアホン呼出装置

Country Status (1)

Country Link
JP (1) JPH0628868Y2 (US20110009641A1-20110113-C00185.png)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0828902B2 (ja) * 1986-11-17 1996-03-21 松下電工株式会社 電話システム

Also Published As

Publication number Publication date
JPH0366277U (US20110009641A1-20110113-C00185.png) 1991-06-27

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