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PCE
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DIFF Subgroup
B22D 21/02

Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere (use of inert atmosphere in casting metals in general B22D23/00; apparatus for vacuum casting B22D27/15)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere

CPC: Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere (use of inert atmosphere in casting metals in general B22D23/00; apparatus for vacuum casting B22D27/15)

Full Title

Full titles differ between systems:

IPC:

Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor > Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere

CPC:

Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor > Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere (use of inert atmosphere in casting metals in general B22D23/00; apparatus for vacuum casting B22D27/15)

CPC subdivides this area 4x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

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