JPH0455857U - - Google Patents

Info

Publication number
JPH0455857U
JPH0455857U JP9729390U JP9729390U JPH0455857U JP H0455857 U JPH0455857 U JP H0455857U JP 9729390 U JP9729390 U JP 9729390U JP 9729390 U JP9729390 U JP 9729390U JP H0455857 U JPH0455857 U JP H0455857U
Authority
JP
Japan
Prior art keywords
main device
amplifier
switch
door phone
secondary winding
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
JP9729390U
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 JP9729390U priority Critical patent/JPH0455857U/ja
Publication of JPH0455857U publication Critical patent/JPH0455857U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Telephone Set Structure (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP9729390U 1990-09-18 1990-09-18 Pending JPH0455857U (US20110009641A1-20110113-C00185.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9729390U JPH0455857U (US20110009641A1-20110113-C00185.png) 1990-09-18 1990-09-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9729390U JPH0455857U (US20110009641A1-20110113-C00185.png) 1990-09-18 1990-09-18

Publications (1)

Publication Number Publication Date
JPH0455857U true JPH0455857U (US20110009641A1-20110113-C00185.png) 1992-05-13

Family

ID=31837542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9729390U Pending JPH0455857U (US20110009641A1-20110113-C00185.png) 1990-09-18 1990-09-18

Country Status (1)

Country Link
JP (1) JPH0455857U (US20110009641A1-20110113-C00185.png)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6064563A (ja) * 1983-09-20 1985-04-13 Toshiba Electric Equip Corp インタ−ホン装置
JPS6065653A (ja) * 1983-09-21 1985-04-15 Toshiba Electric Equip Corp 放送装置
JPS60206259A (ja) * 1984-03-30 1985-10-17 Toshiba Electric Equip Corp インタ−ホンシステム
JPS6139761A (ja) * 1984-07-31 1986-02-25 Toshiba Electric Equip Corp インタ−ホンシステム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6064563A (ja) * 1983-09-20 1985-04-13 Toshiba Electric Equip Corp インタ−ホン装置
JPS6065653A (ja) * 1983-09-21 1985-04-15 Toshiba Electric Equip Corp 放送装置
JPS60206259A (ja) * 1984-03-30 1985-10-17 Toshiba Electric Equip Corp インタ−ホンシステム
JPS6139761A (ja) * 1984-07-31 1986-02-25 Toshiba Electric Equip Corp インタ−ホンシステム

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