Dyestuffs, Hearings before the Committee on ways and means, House of representatives, on H.R. 2076, a bill to amend an act entitled "An act to increase the revenue and for other purposes," approved September 8, 1916, and H.R. 6495, a bill to regulate the inportation of coal-tar products, to promote the establishment of the manufacture thereof in the United States, and, as incident thereto, to amend the act of September 8, 1916, entitled "An act to increase the revenue, and for other purposes." June 18-20 and July 14-18, 1919. Indexed.
- Dyes and dyeing
Dyes and dyeing Chemical warfare
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