JPS586490U - 耳掛け式音響変換装置 - Google Patents

耳掛け式音響変換装置

Info

Publication number
JPS586490U
JPS586490U JP3603781U JP3603781U JPS586490U JP S586490 U JPS586490 U JP S586490U JP 3603781 U JP3603781 U JP 3603781U JP 3603781 U JP3603781 U JP 3603781U JP S586490 U JPS586490 U JP S586490U
Authority
JP
Japan
Prior art keywords
ear
approximately
hook
source point
radius
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
JP3603781U
Other languages
English (en)
Japanese (ja)
Other versions
JPS641835Y2 (enrdf_load_stackoverflow
Inventor
榎戸　一浩
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP3603781U priority Critical patent/JPS586490U/ja
Publication of JPS586490U publication Critical patent/JPS586490U/ja
Application granted granted Critical
Publication of JPS641835Y2 publication Critical patent/JPS641835Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Headphones And Earphones (AREA)
JP3603781U 1981-03-14 1981-03-14 耳掛け式音響変換装置 Granted JPS586490U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3603781U JPS586490U (ja) 1981-03-14 1981-03-14 耳掛け式音響変換装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3603781U JPS586490U (ja) 1981-03-14 1981-03-14 耳掛け式音響変換装置

Publications (2)

Publication Number Publication Date
JPS586490U true JPS586490U (ja) 1983-01-17
JPS641835Y2 JPS641835Y2 (enrdf_load_stackoverflow) 1989-01-17

Family

ID=29833283

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3603781U Granted JPS586490U (ja) 1981-03-14 1981-03-14 耳掛け式音響変換装置

Country Status (1)

Country Link
JP (1) JPS586490U (enrdf_load_stackoverflow)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018227U (enrdf_load_stackoverflow) * 1973-06-14 1975-02-28
JPS55171183U (enrdf_load_stackoverflow) * 1979-05-25 1980-12-08

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018227U (enrdf_load_stackoverflow) * 1973-06-14 1975-02-28
JPS55171183U (enrdf_load_stackoverflow) * 1979-05-25 1980-12-08

Also Published As

Publication number Publication date
JPS641835Y2 (enrdf_load_stackoverflow) 1989-01-17

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