Title: Electret capacitor
Application Number: 87104208 Application Date: 1987.06.10
Publication Number: 1023061 Publication Date: 1988.12.21
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H01G7/02
Applicant(s) Name: Zhang Bing Address:
Inventor(s) Name:
Attorney & Agent:
Abstract:
     The capacitance is raised by changing the medium of capacitor.
Time: 7
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