Fire alarm device

The present invention provides a fire alarm device which can prevent body falling-off caused by earthquake, etc. or stealing simply according to requirement. A fire alarm device body (2) is detachably equipped to an installation base (3) provided on a setting surface. A screw fixing structure in whi...

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Bibliographic Details
Main Author TOMITA YOSHIYUKI
Format Patent
LanguageChinese
English
Published 25.07.2012
Subjects
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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