JPH0444756U - - Google Patents

Info

Publication number
JPH0444756U
JPH0444756U JP8633390U JP8633390U JPH0444756U JP H0444756 U JPH0444756 U JP H0444756U JP 8633390 U JP8633390 U JP 8633390U JP 8633390 U JP8633390 U JP 8633390U JP H0444756 U JPH0444756 U JP H0444756U
Authority
JP
Japan
Prior art keywords
volume
comparison
button telephone
circuit
electrical
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
JP8633390U
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 JP8633390U priority Critical patent/JPH0444756U/ja
Publication of JPH0444756U publication Critical patent/JPH0444756U/ja
Pending legal-status Critical Current

Links

JP8633390U 1990-08-16 1990-08-16 Pending JPH0444756U (US20030199744A1-20031023-C00003.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8633390U JPH0444756U (US20030199744A1-20031023-C00003.png) 1990-08-16 1990-08-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8633390U JPH0444756U (US20030199744A1-20031023-C00003.png) 1990-08-16 1990-08-16

Publications (1)

Publication Number Publication Date
JPH0444756U true JPH0444756U (US20030199744A1-20031023-C00003.png) 1992-04-16

Family

ID=31817950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8633390U Pending JPH0444756U (US20030199744A1-20031023-C00003.png) 1990-08-16 1990-08-16

Country Status (1)

Country Link
JP (1) JPH0444756U (US20030199744A1-20031023-C00003.png)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS591573B2 (ja) * 1973-01-20 1984-01-12 呉羽化学工業株式会社 ネツカソセイジユシパイプナイソウカコウホウ
JPS62214799A (ja) * 1986-03-14 1987-09-21 Iwatsu Electric Co Ltd 電話装置
JPS62269452A (ja) * 1986-05-19 1987-11-21 Nec Corp 受話音量自動調節式電話機
JPS63253794A (ja) * 1987-04-09 1988-10-20 Nec Corp ボタン電話装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS591573B2 (ja) * 1973-01-20 1984-01-12 呉羽化学工業株式会社 ネツカソセイジユシパイプナイソウカコウホウ
JPS62214799A (ja) * 1986-03-14 1987-09-21 Iwatsu Electric Co Ltd 電話装置
JPS62269452A (ja) * 1986-05-19 1987-11-21 Nec Corp 受話音量自動調節式電話機
JPS63253794A (ja) * 1987-04-09 1988-10-20 Nec Corp ボタン電話装置

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