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英文字典中文字典相关资料:


  • Google Patents
    Search and read the full text of patents from around the world with Google Patents, and find prior art in our index of non-patent literature
  • Search for patents | USPTO
    Find existing patents, published patent applications, and other published patent documentation
  • WIPO - Search International and National Patent Collections
    This patent search tool allows you not only to search the PCT database of about 2 million International Applications but also the worldwide patent collections This search facility features: flexible search syntax; automatic word stemming and relevance ranking; as well as graphical results
  • Patent Public Search | USPTO
    Select Basic search to look for patents by keywords or common fields, such as inventor or publication number Select Advanced search to unlock the full potential of patent searching with various search queries, detailed filtering options, and tools to tag and manage documents
  • Google Patents Advanced Search
    Search and read the full text of patents from around the world with Google Patents, and find prior art in our index of non-patent literature
  • Patent Center - United States Patent and Trademark Office
    Search by application number, patent number, PCT number, publication number or international design registration number
  • Patent Public Search | USPTO
    Patent Public Search | USPTO
  • Patent Public Search | USPTO
    Patent Public Search | USPTO Patent Public Search | USPTO - extended window
  • WIPO Search
    Search WIPO's extensive database for patents, trademarks, and other intellectual property information worldwide
  • Samuel Tissot Inventions, Patents and Patent Applications - Justia . . .
    Samuel Tissot has filed for patents to protect the following inventions This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO)





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