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    1. Nowadays many authorities such as The European Patent Office , the United States Patent Office and German patent office has adopted it to manage patent .
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    3. Patent application, patent grant and patent term of Du-Pont R407 series products are analysed in this paper.
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    4. Their patent services include patentability searching, patent research and retrieval, patent application or assignment hand delivery.
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    Thepresent invention relates generally to a fuel system for internalcombustion engines that enables the invention to utilize alternativefuels
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