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European Classification
The European Classification (ECLA〔"ECLA" stands for European Classification. See for example: 〕) is a former patent classification system maintained by the European Patent Office (EPO). The ECLA classification system contains 134 000 subdivisions. It is mainly an extension of the International Patent Classification system, but sometimes modifies its titles and rules. ECLA is used in connection with the indexing system ICO, which serves to identify additional information and aspects that are not covered by the ECLA schemes.〔(European Classification (ECLA) ) on the Espacenet web site. Consulted on January 20, 2007.〕 ECLA has been replaced by the Cooperative Patent Classification (CPC) as of January 1, 2013.
== See also ==
* Cooperative Patent Classification (CPC)
* International Patent Classification (IPC)
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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