DIFF Main Group
F01D 13/00 Combinations of two or more machines or engines (F01D15/00 takes precedence; combinations of two or more pumps F04; fluid gearing F16H)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Combinations of two or more machines or engines
CPC: Combinations of two or more machines or engines (F01D15/00 takes precedence; combinations of two or more pumps F04; fluid gearing F16H)
Full Title
Full titles differ between systems:
IPC:
Combinations of two or more machines or engines
CPC:
Combinations of two or more machines or engines (F01D15/00 takes precedence; combinations of two or more pumps F04; fluid gearing F16H)
CPC subdivides this area 3x more granularly than IPC with 2 additional codes.
2 codes are CPC-only extensions.
Child Classifications
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