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Subject
- Dinners and dining2
- Advertising1
- Advertising, Industrial1
- Beckman Instruments, Inc.1
- Beckman, Arnold O.1
- Campbell Soup Company1
- Chemical industry1
- Convenience foods1
- Corporations1
- Dow Chemical Company1
- E.I. du Pont de Nemours & Company1
- Employees1
- Food--Packaging1
- Food--Preservation1
- Food--Storage1
- Packaging1
- Plastic films1
- Plastics in packaging1
- Ready meals1
- Scientific apparatus and instruments1