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Subject
- Food--Preservation2
- Food--Storage2
- Plastic films2
- Advertising1
- Beckman Instruments, Inc.1
- Beckman, Arnold O.1
- Dinners and dining1
- E.I. du Pont de Nemours & Company1
- Employees1
- Food additives1
- Food additives industry1
- International Minerals and Chemical Corporation1
- Monosodium glutamate1
- Plastics industry and trade1
- Polyethylene1
- Polymers1
- Samples (Commerce)1
- Scientific apparatus and instruments1