JPH0394599U - - Google Patents

Info

Publication number
JPH0394599U
JPH0394599U JP213990U JP213990U JPH0394599U JP H0394599 U JPH0394599 U JP H0394599U JP 213990 U JP213990 U JP 213990U JP 213990 U JP213990 U JP 213990U JP H0394599 U JPH0394599 U JP H0394599U
Authority
JP
Japan
Prior art keywords
sound
window
resonant membrane
permeable
protrusions
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
JP213990U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0713039Y2 (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 JP1990002139U priority Critical patent/JPH0713039Y2/ja
Publication of JPH0394599U publication Critical patent/JPH0394599U/ja
Application granted granted Critical
Publication of JPH0713039Y2 publication Critical patent/JPH0713039Y2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Piezo-Electric Transducers For Audible Bands (AREA)
JP1990002139U 1990-01-12 1990-01-12 音声発振装置の通音窓 Expired - Fee Related JPH0713039Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990002139U JPH0713039Y2 (ja) 1990-01-12 1990-01-12 音声発振装置の通音窓

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990002139U JPH0713039Y2 (ja) 1990-01-12 1990-01-12 音声発振装置の通音窓

Publications (2)

Publication Number Publication Date
JPH0394599U true JPH0394599U (en]) 1991-09-26
JPH0713039Y2 JPH0713039Y2 (ja) 1995-03-29

Family

ID=31506018

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990002139U Expired - Fee Related JPH0713039Y2 (ja) 1990-01-12 1990-01-12 音声発振装置の通音窓

Country Status (1)

Country Link
JP (1) JPH0713039Y2 (en])

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5040176U (en]) * 1973-08-10 1975-04-24
JPS52151067A (en) * 1976-06-11 1977-12-15 Seiko Instr & Electronics Ltd Alarm watch
JPS54160579U (en]) * 1978-04-28 1979-11-09
JPS5610276A (en) * 1979-07-04 1981-02-02 Citizen Watch Co Ltd Sound diaphragm of sound-producing body for clock

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5040176U (en]) * 1973-08-10 1975-04-24
JPS52151067A (en) * 1976-06-11 1977-12-15 Seiko Instr & Electronics Ltd Alarm watch
JPS54160579U (en]) * 1978-04-28 1979-11-09
JPS5610276A (en) * 1979-07-04 1981-02-02 Citizen Watch Co Ltd Sound diaphragm of sound-producing body for clock

Also Published As

Publication number Publication date
JPH0713039Y2 (ja) 1995-03-29

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees