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Ching-Muh Luu
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Yueh-Tan Tsuen, Hsin-Kang Hsiang, Chiayi Hsien, TW
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last 30 patents
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Patent Grant
Internal thread forming apparatus with an automatic rotational dire...
Patent number
5,096,343
Issue date
Mar 17, 1992
Ching-Muh Luu
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