5003042676
pitch (tar) (300012949) 'distinguished from' tar (bituminous material) (300012991);
changeNote
5003042676
pitch (tar) (300012949) 'distinguished from' tar (bituminous material) (300012991);
description
pitch (tar) (300012949) 'distinguished from' tar (bituminous material) (300012991);
type
relation added
startedAtTime
2011-08-05T14:24:19