Get a "provisional" patent first, much cheaper

gchai · 2010-09-11 22:30:26Z

Get a "provisional" patent first, much cheaper简介

来源: gchai 于 2010-09-11 22:30:26 [档案] [博客] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)

回答: 申请实用小专利大概要花多少钱？由执着的创业者于 2010-09-11 08:48:59

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