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Patent Number
A semicolon separated list of patent numbers starting from Apr 6, 1971 (3,573,336) can be looked up. Prior patents can be retrieved but will be image only.
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Instructions:
  • Expand the row to see the assignee and read the patent abstract.
  • Click the patent number to download and print the patent as a PDF, view a summary which includes the abstract, patent classification, and patents cited as well other non-patent references, and view a summary of the cited patents.
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