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NationalIntellectualPropertyOfficepatentdatabase

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United States Patent and Trademark Office

United States Patent and Trademark Office

Directory of Intellectual Property Offices

Directory of Intellectual Property Offices

Intellectual Property Office - Patents - Licence..._百度学术

Intellectual Property Office - Patents - Licence..._百度学术

...economy of European intellectual property ..._百度学术

...economy of European intellectual property ..._百度学术

Links - Canadian Intellectual Property Office_百度学术

Links - Canadian Intellectual Property Office_百度学术

【图书】...and Regulations: Intellectual Property ..._百度学术

【图书】...and Regulations: Intellectual Property ..._百度学术

【专利】Optische Platte und optisches Plattengerät_百度学术

【专利】Optische Platte und optisches Plattengerät_百度学术

alfons palangkaraya † - Patent Application Databases

alfons palangkaraya † - Patent Application Databases