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- Espacenet: EPO
  
  2011年3月24日 - Espacenet - patent search. ... GPI - advanced search. Espacenet. Patent search. Espacenet offers free access to more than 80 million patent ...
  
  2026-04-21
  
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- www.thefreedictionary.com
  
  TheFreeDictionary.com - patent - definition of patent by the Free ...
  
  pat·ent - n. 1. a. A grant made by a government that confers upon the creator of an invention the sole right to make, use, and sell that invention for a set period of time.
  
  2026-04-24
  
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EPO - Free online services

日期：2026-04-21

11 Jul 2012 ... The European Patent Office offers access to the free patent databases ... Espacenet - patent search....

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Free Patent Search Online - Inventors - About.com

日期：2026-04-20

A list of online databases for a free patent search covering Canada - United States - Europe - WIPO and the EPO free ......

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EPO - Searching for patents

日期：2026-04-22

... practice · News & issues · Learning & events · Home; Searching for patents ......

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Espacenet - Home page

日期：2026-04-22

11 Jun 2014 ... Logo European Patent Office. Espacenet ... About Espacenet; Other EPO online services. Searching ......

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FreshPatents.com: Updated Patent Lists & Free Tools

日期：2026-04-25

Listing of recent US patent applications with keyword monitoring and RSS feeds....

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Search for Patents | USPTO

日期：2026-04-21

2009年7月4日 - Find existing patents, published patent applications and other published patent documentation....

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Bibliographic database - Wikipedia, the free encyclopedia

日期：2026-04-19

A bibliographic database is a database of bibliographic records, an organized digital collection of references to published literature, including journal and newspaper articles, conference proceedings, reports, government and legal publications, patents, ...

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