CPC Subgroup
E01C 13/045 Full Title
Pavings or foundations specially adapted for playgrounds or sports grounds; (general layout A63C19/00) > Pavings made of prefabricated single units ( , E01C13/08, E01C13/10 take precedence)
E01C 13/045 Pavings or foundations specially adapted for playgrounds or sports grounds; (general layout A63C19/00) > Pavings made of prefabricated single units ( , E01C13/08, E01C13/10 take precedence)