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When Google patents says "also published as" it is not being precise and that is a primary cause for the confusion. As you are aware, each country has its own system of patent numbering. More fundamentally, the have their own entire patent systems. A Canadian patent number is not just a different name given to a U.S. patent. They may have the same ...


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In ESPACENET search results, under the section Bibliographic data, with "also published as" an "ESPACENET family" is retrieved and all the documents having (exactly) the same priority numbers are listed. So, according to the fact that three several application have been submitted claiming the (exactly) same set of priority numbers, then the following US ...


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