characterised by the material thereof

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Contacts > characterised by the material thereof

CPC:

Contacts (liquid contacts H01H29/04) > characterised by the material thereof

CPC subdivides this area 3x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

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H01H 1/0201 CPC only CPC only
H01H 1/0203 +2 CPC CPC only CPC only
H01H 1/021 Composite material since 2006 IPC+CPC Available in IPC and CPC
H01H 1/04 Co-operating contacts of different material IPC+CPC Available in IPC and CPC
H01H 2001/0208 2nd only CPC only CPC only