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About patents About patents Idioma: English / English	Austrian Patent Office Austrian Patent Office Idioma: English / English
Canadian Intellectual Property Office Canadian Intellectual Property Office Idioma: English / English	Chemical Patent Searching Chemical Patent Searching Idioma: English / English
Chemical Patents Watch Chemical Patents Watch Idioma: English / English
DEPATISnet DEPATISnet Idioma: English / English
Derwent Derwent Idioma: English / English
Deutsche Patentamt Online Deutsche Patentamt Online Idioma: English / English
esp@cenet esp@cenet Idioma: English / English
European Patent Office European Patent Office Idioma: English / English	Five Hundred Years of Patents Five Hundred Years of Patents Idioma: English / English
General Information Concerning Patents General Information Concerning Patents Idioma: English / English	GetIPDL GetIPDL Idioma: English / English
IFI Claims patent service IFI Claims patent service Idioma: English / English	Information on Patents for Researchers Information on Patents for Researchers Idioma: English / English
Information Specialties Information Specialties Idioma: English / English	Institut National de la Propriete Industrielle Institut National de la Propriete Industrielle Idioma: English / English
Instituto Nacional Propriedade Industrial Instituto Nacional Propriedade Industrial Idioma: English / English	Irish Patents Office Irish Patents Office Idioma: English / English
Japan Patent Office Japan Patent Office Idioma: English / English	MicroPatent MicroPatent Idioma: English / English
Organic Chemistry and Patents Organic Chemistry and Patents Idioma: English / English	Outline of the Industrial Property Rights system Outline of the Industrial Property Rights system Idioma: English / English
P\S\L Consulting Group Inc. P\S\L Consulting Group Inc. Idioma: English / English	Patent information on the Internet Patent information on the Internet Idioma: English / English
Patent Information Users Group Inc Patent Information Users Group Inc Idioma: English / English	Patent it Yourself Patent it Yourself Idioma: English / English
Patent Resource Site Patent Resource Site Idioma: English / English	Patentdirektoratet Patentdirektoratet Idioma: English / English
Patents TM Patents TM Idioma: English / English	STO's Internet Patent website STO's Internet Patent website Idioma: English / English
The British Library - Collections, Patents, trade marks & designs The British Library - Collections, Patents, trade marks & designs Idioma: English / English	UK Patent Office UK Patent Office Idioma: English / English
US Patent Classes - Chemical Group US Patent Classes - Chemical Group Idioma: English / English	US Patents Office US Patents Office Idioma: English / English
Who Owns What Intellectual Property, Copyright, and the Next Millenium Who Owns What Intellectual Property, Copyright, and the Next Millenium Idioma: English / English