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Bih-Chang Wang
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Yunlin, TW
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Patents Grants
last 30 patents
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Patent Grant
Sensitivity adjusting equipment of photoelectric smoke detector
Patent number
6,797,959
Issue date
Sep 28, 2004
Precision Instrument Development Center, National Science Council
Shenq-Tsong Chang
G08 - SIGNALLING
Patents Applications
last 30 patents
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Patent Application
Sensitivity adjusting equipment of photoelectric smoke detector
Publication number
20030209670
Publication date
Nov 13, 2003
Precision Instrument Development Center, National Science Council
Shenq-Tsong Chang
G08 - SIGNALLING