Patent Classification Explorer PCE

DIFF Main Group

B21F 9/00

Straining wire

Introduced: September 1968

CPC subdivides this area 4x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

Child Classifications

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B21F 9/002 CPC only CPC only
B21F 9/005 CPC only CPC only
B21F 9/007 CPC only CPC only
B21F 9/02 by tools adapted also for making connections IPC+CPC Available in IPC and CPC