What are the different types of references in CPC Definitions?

CPC Definitions include several types of references, each serving a specific purpose in patent classification. According to MPEP 905.02, the main types of references are: Limiting and precedence references: These define the boundaries of classification places. Specially adapted references: These point from function-oriented (general) to application-oriented places. Residual references: These are found in residual subclasses…

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