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PCE
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DIFF Subgroup
C22F 1/14

of noble metals or alloys based thereon

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working > of noble metals or alloys based thereon

CPC:

Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working (apparatus for mechanical working of metal B21, B23, B24) > of noble metals or alloys based thereon

No child classifications to compare. This is a leaf node in both IPC and CPC.