JPH0425390U - - Google Patents

Info

Publication number
JPH0425390U
JPH0425390U JP6737190U JP6737190U JPH0425390U JP H0425390 U JPH0425390 U JP H0425390U JP 6737190 U JP6737190 U JP 6737190U JP 6737190 U JP6737190 U JP 6737190U JP H0425390 U JPH0425390 U JP H0425390U
Authority
JP
Japan
Prior art keywords
control circuit
switching means
telephone
main device
closed
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
JP6737190U
Other languages
English (en)
Japanese (ja)
Other versions
JP2544242Y2 (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 JP1990067371U priority Critical patent/JP2544242Y2/ja
Publication of JPH0425390U publication Critical patent/JPH0425390U/ja
Application granted granted Critical
Publication of JP2544242Y2 publication Critical patent/JP2544242Y2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP1990067371U 1990-06-25 1990-06-25 電話装置 Expired - Fee Related JP2544242Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990067371U JP2544242Y2 (ja) 1990-06-25 1990-06-25 電話装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990067371U JP2544242Y2 (ja) 1990-06-25 1990-06-25 電話装置

Publications (2)

Publication Number Publication Date
JPH0425390U true JPH0425390U (US06256357-20010703-M00001.png) 1992-02-28
JP2544242Y2 JP2544242Y2 (ja) 1997-08-13

Family

ID=31600887

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990067371U Expired - Fee Related JP2544242Y2 (ja) 1990-06-25 1990-06-25 電話装置

Country Status (1)

Country Link
JP (1) JP2544242Y2 (US06256357-20010703-M00001.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100386527B1 (ko) * 1995-12-27 2003-08-14 주식회사 넷앤텍 스피커폰을 이용한 경비실 및 우회통화회로

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63252090A (ja) * 1987-04-08 1988-10-19 Sekisui Chem Co Ltd 電話装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63252090A (ja) * 1987-04-08 1988-10-19 Sekisui Chem Co Ltd 電話装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100386527B1 (ko) * 1995-12-27 2003-08-14 주식회사 넷앤텍 스피커폰을 이용한 경비실 및 우회통화회로

Also Published As

Publication number Publication date
JP2544242Y2 (ja) 1997-08-13

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees