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Reading the scale at tetraethyl lead plant
Chambers Works of DuPont's Organic Chemicals Department
Reading the scale at tetraethyl lead plant
Chambers Works of DuPont's Organic Chemicals Department
Laboratory setup for organic kinetics study at DuPont's Petroleum Laboratory
Tanks used for the storage of raw materials at camphor plant
Boiling off Freon at DuPont's Chambers Works
Cylinders of Freon at DuPont's Chambers Works
Freon manufacturing building at Chambers Works
Raw materials used in 'Freon' at DuPont's Chambers Works
Knock testing engine used in fundamental combustion research by DuPont
Loading Freon onto rail cars
Test for determining the amount of tetraethyl lead in gasoline
Testing motor fuels at DuPont's Petroleum Laboratory
Hydrocluoric acid units at Chambers Works
Drying the Freon at DuPont's Chambers Works
Operator at DuPont Company's Chambers Works displaying aerosol bug bombs
Simplifying the job
Work planning

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