using a magnet

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Operating means; Releasing devices > electric; magnetic > using a magnet

CPC:

Operating means; Releasing devices > electric ; magnetic > using a magnet

CPC subdivides this area 4x more granularly than IPC with 5 additional codes.

5 codes are CPC-only extensions.

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F16K 31/0603 +5 CPC CPC only CPC only
F16K 31/0644 +5 CPC CPC only CPC only
F16K 31/0675 +1 CPC CPC only CPC only
F16K 31/0682 CPC only CPC only
F16K 31/0686 +3 CPC CPC only CPC only
F16K 31/08 using a permanent magnet +3 CPC IPC+CPC Available in IPC and CPC
F16K 31/10 with additional mechanism between armature and closure member +1 CPC −1 IPC IPC+CPC Available in IPC and CPC