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- Dow Chemical Company291
- Industries166
- Employees154
- Machinery60
- Corporations56
- Plastics55
- Laboratories54
- Scientific apparatus and instruments53
- Plastics industry and trade50
- Chemical industry27
- Advertising25
- Cleveland-Cliffs Iron Company24
- Glassware23
- Wood distillation23
- Chemical industry--By-products22
- Polystyrene19
- Consumer goods18
- Magnesium17
- Extrusion process16
- Foam16