The CPI Manual Codes, consisting of a set of approximately 7, 500 hierarchically- grouped indexing terms, represented by a systematic notation. The term listing has been revised a number of times since it was first created in 1963, includinganbsp;...
Title | : | Information Sources in Patents |
Author | : | Stephen Adams |
Publisher | : | Walter de Gruyter - 2006-01-01 |
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