DIFF Subgroup
F16K 31/08 using a permanent magnet
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Operating means; Releasing devices > electric; magnetic > using a magnet > using a permanent magnet
CPC:
Operating means; Releasing devices > electric ; magnetic > using a magnet > using a permanent magnet
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Child Classifications
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