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PCE
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DIFF Subgroup
B01J 37/16

Reducing

Introduced: July 1974

Full Title

Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts > Reducing

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

IPC defines codes here since 1974.

Child Classifications

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  • B01J 37/18 with gases containing free hydrogen since 1974 IPC+CPC Available in IPC and CPC