DIFF Subgroup
F04B 49/12 by varying the length of stroke of the working members
Introduced: January 1995
Full Title
Full titles differ between systems:
IPC:
Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups > by varying the length of stroke of the working members
CPC:
Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 > by varying the length of stroke of the working members
CPC subdivides this area 3x more granularly than IPC with 2 additional codes.
2 codes are CPC-only extensions.
IPC defines codes here since 1995.
Child Classifications
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- F04B 49/14 Adjusting abutments located in the path of reciprocation since 1995 IPC+CPC Available in IPC and CPC