JPS63187495U - - Google Patents

Info

Publication number
JPS63187495U
JPS63187495U JP7814787U JP7814787U JPS63187495U JP S63187495 U JPS63187495 U JP S63187495U JP 7814787 U JP7814787 U JP 7814787U JP 7814787 U JP7814787 U JP 7814787U JP S63187495 U JPS63187495 U JP S63187495U
Authority
JP
Japan
Prior art keywords
visible light
slit
speaker
light source
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
JP7814787U
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 JP7814787U priority Critical patent/JPS63187495U/ja
Publication of JPS63187495U publication Critical patent/JPS63187495U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Details Of Audible-Bandwidth Transducers (AREA)
JP7814787U 1987-05-26 1987-05-26 Pending JPS63187495U (da)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7814787U JPS63187495U (da) 1987-05-26 1987-05-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7814787U JPS63187495U (da) 1987-05-26 1987-05-26

Publications (1)

Publication Number Publication Date
JPS63187495U true JPS63187495U (da) 1988-11-30

Family

ID=30926821

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7814787U Pending JPS63187495U (da) 1987-05-26 1987-05-26

Country Status (1)

Country Link
JP (1) JPS63187495U (da)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56140795A (en) * 1980-03-12 1981-11-04 Philips Nv Electroacoustic converter position control device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56140795A (en) * 1980-03-12 1981-11-04 Philips Nv Electroacoustic converter position control device

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