JPH0181092U - - Google Patents

Info

Publication number
JPH0181092U
JPH0181092U JP1987177086U JP17708687U JPH0181092U JP H0181092 U JPH0181092 U JP H0181092U JP 1987177086 U JP1987177086 U JP 1987177086U JP 17708687 U JP17708687 U JP 17708687U JP H0181092 U JPH0181092 U JP H0181092U
Authority
JP
Japan
Prior art keywords
sound
hole
earphone
casing
microphone
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
JP1987177086U
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 JP1987177086U priority Critical patent/JPH0181092U/ja
Publication of JPH0181092U publication Critical patent/JPH0181092U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Details Of Audible-Bandwidth Transducers (AREA)
JP1987177086U 1987-11-20 1987-11-20 Pending JPH0181092U (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987177086U JPH0181092U (en]) 1987-11-20 1987-11-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987177086U JPH0181092U (en]) 1987-11-20 1987-11-20

Publications (1)

Publication Number Publication Date
JPH0181092U true JPH0181092U (en]) 1989-05-31

Family

ID=31468765

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987177086U Pending JPH0181092U (en]) 1987-11-20 1987-11-20

Country Status (1)

Country Link
JP (1) JPH0181092U (en])

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58188996A (ja) * 1982-04-27 1983-11-04 Katsuo Motoi 外耳道内双方向通話装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58188996A (ja) * 1982-04-27 1983-11-04 Katsuo Motoi 外耳道内双方向通話装置

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