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Chao-Hsu Cheng
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Chang Hua City, TW
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Patents Applications
last 30 patents
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Patent Application
Bicycle sprocket wheel
Publication number
20170016524
Publication date
Jan 19, 2017
Chao-Yuan Cheng
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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Patent Application
Method for densifying surface of powder metallurgy article and appa...
Publication number
20070048168
Publication date
Mar 1, 2007
Chung Chou Institute of Technology
Chao-Hsu Cheng
B22 - CASTING POWDER METALLURGY