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PCE
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DIFF Subgroup
A01B 3/34

with parallel plough units used alternately

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Ploughs with fixed plough-shares > Tractor-drawn ploughs > Alternating ploughs > with parallel plough units used alternately

CPC:

Ploughs with fixed plough-shares > Tractor-drawn ploughs (A01B3/04 takes precedence) > Alternating ploughs > with parallel plough units used alternately

No child classifications to compare. This is a leaf node in both IPC and CPC.