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Dewey Services : Overview : Dewey licensing

If you're interested in licensing Dewey, please check with us first

Since the Dewey Decimal Classification (DDC) system was created some 130 years ago, it's easy to assume that the Dewey name is in the public domain. However, it never has been, and since 1988, OCLC Online Computer Library Center has held the trademark on the Dewey name.

If you have interest in licensing the Dewey name for a legitimate business purpose, please contact OCLC first. We have established licensing arrangements that enable other organizations to use the Dewey name while protecting OCLC's trademark rights.

所有的杜威十进分类体系的版权均为 OCLC 所有。
Dewey，Dewey Decimal Classification，DDC，OCLC 以及 WebDewey 都是 OCLC 的注册商标。