letters patent
专利证书;
专利特许证;
英皇制诰;
专利证,特许证书;
letters patent
专利证书;
专利特许证;
英皇制诰;
专利证,特许证书;
assignment of letters patent and trade mark
专利证书及商标转让;
专利证书及商标转让 财经;
专利证书及商标转让 -------[光年网原创;
a ignment of letters patent and trade mark
专利证书及商标转让;
Patent Pledges and Patent Commons
专利开放承诺与专利共同;