JPH0443053U - - Google Patents

Info

Publication number
JPH0443053U
JPH0443053U JP8319490U JP8319490U JPH0443053U JP H0443053 U JPH0443053 U JP H0443053U JP 8319490 U JP8319490 U JP 8319490U JP 8319490 U JP8319490 U JP 8319490U JP H0443053 U JPH0443053 U JP H0443053U
Authority
JP
Japan
Prior art keywords
side sound
prevention circuit
interphone
telephone
sound prevention
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
JP8319490U
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 JP8319490U priority Critical patent/JPH0443053U/ja
Publication of JPH0443053U publication Critical patent/JPH0443053U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
JP8319490U 1990-08-06 1990-08-06 Pending JPH0443053U (US07993877-20110809-P00003.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8319490U JPH0443053U (US07993877-20110809-P00003.png) 1990-08-06 1990-08-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8319490U JPH0443053U (US07993877-20110809-P00003.png) 1990-08-06 1990-08-06

Publications (1)

Publication Number Publication Date
JPH0443053U true JPH0443053U (US07993877-20110809-P00003.png) 1992-04-13

Family

ID=31630655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8319490U Pending JPH0443053U (US07993877-20110809-P00003.png) 1990-08-06 1990-08-06

Country Status (1)

Country Link
JP (1) JPH0443053U (US07993877-20110809-P00003.png)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01241954A (ja) * 1988-03-23 1989-09-26 Nec Corp 平衡回路網
JPH0238853B2 (US07993877-20110809-P00003.png) * 1983-03-17 1990-09-03 Robaato Sutoorei Babinton

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0238853B2 (US07993877-20110809-P00003.png) * 1983-03-17 1990-09-03 Robaato Sutoorei Babinton
JPH01241954A (ja) * 1988-03-23 1989-09-26 Nec Corp 平衡回路網

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