JPS604058U - 拡声電話装置 - Google Patents

拡声電話装置

Info

Publication number
JPS604058U
JPS604058U JP9278383U JP9278383U JPS604058U JP S604058 U JPS604058 U JP S604058U JP 9278383 U JP9278383 U JP 9278383U JP 9278383 U JP9278383 U JP 9278383U JP S604058 U JPS604058 U JP S604058U
Authority
JP
Japan
Prior art keywords
level
received signal
public address
telephone equipment
telephone device
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
JP9278383U
Other languages
English (en)
Japanese (ja)
Other versions
JPH039414Y2 (en]
Inventor
達 中原
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP9278383U priority Critical patent/JPS604058U/ja
Publication of JPS604058U publication Critical patent/JPS604058U/ja
Application granted granted Critical
Publication of JPH039414Y2 publication Critical patent/JPH039414Y2/ja
Granted legal-status Critical Current

Links

JP9278383U 1983-06-18 1983-06-18 拡声電話装置 Granted JPS604058U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9278383U JPS604058U (ja) 1983-06-18 1983-06-18 拡声電話装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9278383U JPS604058U (ja) 1983-06-18 1983-06-18 拡声電話装置

Publications (2)

Publication Number Publication Date
JPS604058U true JPS604058U (ja) 1985-01-12
JPH039414Y2 JPH039414Y2 (en]) 1991-03-08

Family

ID=30223159

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9278383U Granted JPS604058U (ja) 1983-06-18 1983-06-18 拡声電話装置

Country Status (1)

Country Link
JP (1) JPS604058U (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0221846U (en]) * 1988-07-13 1990-02-14

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59230355A (ja) * 1983-06-14 1984-12-24 Matsushita Electric Ind Co Ltd ハンドフリ−通話装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59230355A (ja) * 1983-06-14 1984-12-24 Matsushita Electric Ind Co Ltd ハンドフリ−通話装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0221846U (en]) * 1988-07-13 1990-02-14

Also Published As

Publication number Publication date
JPH039414Y2 (en]) 1991-03-08

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