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Subject
- Bredig, Georg, 1868-194484
- Bredig, Max Albert, 1902-197780
- Scientific apparatus and instruments53
- Third Reich40
- Corporations37
- Chemists35
- Chemical industry34
- Beckman Instruments, Inc.30
- Chemistry27
- Hydrogen-ion concentration--Measurement--Instruments26
- Machinery22
- Advertising, Industrial20
- Advertising19
- Dow Chemical Company19
- Jews, German18
- Hercules Incorporated17
- Drugs15
- United States. Bureau of Chemistry and Soils15
- United States. Department of Agriculture15
- Employees14