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Yaw H. Chen
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Pu Yuan Tsuen, Yeong Kang Shiang, Tainan Hsien, TW
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last 30 patents
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Patent Grant
Machine for placing a plastic bag automatically into a larger feeds...
Patent number
4,636,189
Issue date
Jan 13, 1987
Yaw H. Chen
B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD