DIFF Subgroup
F16J 15/10 with non-metallic packing
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Sealings > between relatively-stationary surfaces > with solid packing compressed between sealing surfaces > with non-metallic packing
CPC:
Sealings > between relatively-stationary surfaces (F16J15/46, F16J15/48 take precedence) > with solid packing compressed between sealing surfaces > with non-metallic packing
CPC subdivides this area 4x more granularly than IPC with 3 additional codes.
3 codes are CPC-only extensions.
Child Classifications
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