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PCE
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CPC Subgroup
E06B 7/24

without separate sealing members, e.g. with labyrinth

Full Title

Special arrangements or measures in connection with doors or windows ( ; screening or similar protective devices E06B9/00) > Sealing arrangements on wings or parts co-operating with the wings ( E06B7/098 takes precedence ) > without separate sealing members, e.g. with labyrinth