Subject
- Cosmetics industry1
- Cotton7
- Cotton--Diseases and pests8
- Cotton--Diseases and pests--Control5
- DDT (Insecticide)30
- Detergent industry13
- Detergents21
- Disinfectants industry26
- Disinfection and disinfectants31
- Dolls2
- Dyes and dyeing3
- Employees11
- Emulsions1
- Ethylcellulose13
- Explosives32
- Explosives industry48
- Flotation2
- Flotation reagents5
- Founding21
- Foundries7