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PCE
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DIFF Subgroup
E01B 9/681

Full Title

Fastening rails on sleepers, or the like (fastening rails to bridges E01D19/12) > Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.