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Subject
- Dyes and dyeing[remove]5
- Chemical industry2
- Dyes and dyeing--Chemistry2
- Althouse Chemical Company1
- Commercial art1
- Corporations1
- Diamond Dyes Company (Burlington, Vt.)1
- Dow Chemical Company1
- Dye industry1
- Employees1
- Factories1
- Indigo1
- Laboratories1
- Perkin, William Henry, Sir, 1838-19071
- Putnam Dyes1
- Quality control1
- Research, Industrial--Laboratories1
- Scientific apparatus and instruments1