Dear Espacenet users,
You can find information on the so-called “breakdown codes” on the CPC web page: http://www.cooperativepatentclassificat ... leaved.pdf
All the symbols in the 2000/-- area and beyond are to be considered as Indexing Codes and not to be used for Invention Information, but for Additional Information only.
Your Patent Information User Support Team
Tips and tricks on how to get the most out of Espacenet
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