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PCE
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CPC Subgroup
E21D 5/04

with brick, concrete, stone, or similar building materials (E21D5/01, E21D5/012, E21D5/016 take precedence)

Full Title

Lining shafts; Linings therefor (E21D11/00 takes precedence ) > with brick, concrete, stone, or similar building materials (E21D5/01, E21D5/012, E21D5/016 take precedence)