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PCE
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CPC Subgroup
F17C 3/04

by insulating layers (F17C3/08 takes precedence)

Full Title

Vessels not under pressure > with provision for thermal insulation (thermal insulation in general F16L59/00 ) > by insulating layers (F17C3/08 takes precedence)

1 direct subcode

Child Classifications

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  • F17C 3/06 on the inner surface, i.e. in contact with the stored fluid