pam 发表于 2013-5-30 16:53:53

请问如何检索International Application Number:PCT/US11/48335

“One kinds of white LED green phosphors powder and their preparation methods”
申请美国发明专利的申请号， 不知道怎么查。求指点！！！

guest 发表于 2013-5-31 14:24:44

guest 发表于 2013-5-31 14:27:03

blind imitation with ludicrous effection
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