申请专利要那些手续

1 楼
申请专利要哪些手续
2014-08-28 04:59:05
tanyl520
2 楼
手续挺多的,建议找代理公司来完成
2014-10-28 10:52:48
jdzcf1988
3 楼
最好咨询下代理公司 手续很复杂
2014-11-10 14:03:32
fjony
4 楼
手续很复杂,咨询代理公司吧
2015-01-23 14:17:19
cn362403
5 楼
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2015-04-25 19:32:28