Marble; doors, not of metal; grave slabs, not of metal; refractory construction materials, not of metal; lumber; luminous plates (terms considered too vague by the International Bureau - rule 13 (2) (b) of the Regulations); coatings being building materials, not of metal; aviaries [structures], not of metal; asphalted paperboard for building; binding agents for stones (terms considered too vague by the International Bureau - rule 13 (2) (b) of the Regulations)