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Harry Maas Ullmann

b. 1868 ยท 2 books

Books by Harry Maas Ullmann

Petroleum wash-oil thickening
Petroleum wash-oil thickening in the scrubbing of coke-oven gas
1929
On para-chlor-meta-sulpho-benzoic acid and some of its derivatives ..
On para-chlor-meta-sulpho-benzoic acid and some of its derivatives ..
1892