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Patent it yourself

Patent it yourself

by David Pressman

  eBook  |  9th ed


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1-1 out of 2 WorldCat reviews
学习美国专利的经典教材   (2007-12-10)

Excellent

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by xueliang

学习美国专利的经典教材,great!!!

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1-1 out of 2 WorldCat reviews
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