CPC Subgroup
E04G 23/004 Full Title
Working measures on existing buildings, (; on foundations E02D35/00, E02D37/00; in connection with insulations E04B; subsequent or finishing work E04F)
E04G 23/004 Working measures on existing buildings, (; on foundations E02D35/00, E02D37/00; in connection with insulations E04B; subsequent or finishing work E04F)