JPH02112093U - - Google Patents

Info

Publication number
JPH02112093U
JPH02112093U JP2091789U JP2091789U JPH02112093U JP H02112093 U JPH02112093 U JP H02112093U JP 2091789 U JP2091789 U JP 2091789U JP 2091789 U JP2091789 U JP 2091789U JP H02112093 U JPH02112093 U JP H02112093U
Authority
JP
Japan
Prior art keywords
sound
noise
cancel
cancel sound
canceller
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
JP2091789U
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 JP2091789U priority Critical patent/JPH02112093U/ja
Publication of JPH02112093U publication Critical patent/JPH02112093U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
JP2091789U 1989-02-25 1989-02-25 Pending JPH02112093U (OSRAM)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2091789U JPH02112093U (OSRAM) 1989-02-25 1989-02-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2091789U JPH02112093U (OSRAM) 1989-02-25 1989-02-25

Publications (1)

Publication Number Publication Date
JPH02112093U true JPH02112093U (OSRAM) 1990-09-07

Family

ID=31237689

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2091789U Pending JPH02112093U (OSRAM) 1989-02-25 1989-02-25

Country Status (1)

Country Link
JP (1) JPH02112093U (OSRAM)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS629397A (ja) * 1985-07-08 1987-01-17 大坪　正志 低周波騒音の低減方法とその装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS629397A (ja) * 1985-07-08 1987-01-17 大坪　正志 低周波騒音の低減方法とその装置

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