Title:
MINIATURE ELECTROMAGNETIC BUZZER
Document Type and Number:
Japanese Patent JPS5418298
Kind Code:
A
Abstract:
PURPOSE: To realize the stability of the productivity, the versatility of the alarm sound and others by piling other vibration resonance points on the vibrating plate or drifting the maximum amplitude point from the center of the vibration plate to broaden the frequency property.
Inventors:
NOMURA HIROO
Application Number:
JP8333277A
Publication Date:
February 10, 1979
Filing Date:
July 12, 1977
Export Citation:
Assignee:
SUWA SEIKOSHA KK
International Classes:
G10K9/20; G10K9/12; G10K9/13; (IPC1-7): G10K9/12