JPH0139595B2 - - Google Patents

Info

Publication number
JPH0139595B2
JPH0139595B2 JP57210025A JP21002582A JPH0139595B2 JP H0139595 B2 JPH0139595 B2 JP H0139595B2 JP 57210025 A JP57210025 A JP 57210025A JP 21002582 A JP21002582 A JP 21002582A JP H0139595 B2 JPH0139595 B2 JP H0139595B2
Authority
JP
Japan
Prior art keywords
frequency
piezoelectric vibrator
self
piezoelectric
circuit
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.)
Expired
Application number
JP57210025A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58111987A (ja
Inventor
Michio Kudo
Tatsuo Fukami
Rinpei Hayashibe
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP57210025A priority Critical patent/JPS58111987A/ja
Publication of JPS58111987A publication Critical patent/JPS58111987A/ja
Publication of JPH0139595B2 publication Critical patent/JPH0139595B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Piezo-Electric Transducers For Audible Bands (AREA)
JP57210025A 1982-11-29 1982-11-29 圧電式警報器 Granted JPS58111987A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57210025A JPS58111987A (ja) 1982-11-29 1982-11-29 圧電式警報器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57210025A JPS58111987A (ja) 1982-11-29 1982-11-29 圧電式警報器

Publications (2)

Publication Number Publication Date
JPS58111987A JPS58111987A (ja) 1983-07-04
JPH0139595B2 true JPH0139595B2 (US20050192411A1-20050901-C00001.png) 1989-08-22

Family

ID=16582566

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57210025A Granted JPS58111987A (ja) 1982-11-29 1982-11-29 圧電式警報器

Country Status (1)

Country Link
JP (1) JPS58111987A (US20050192411A1-20050901-C00001.png)

Also Published As

Publication number Publication date
JPS58111987A (ja) 1983-07-04

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