2 Results


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  Title Creator Date  
1 PC/NECH: Chemistry laboratory, Pratt building Weber, Paul
1938
  • PC/NECH: Chemistry laboratory, Pratt building
2 PC/NECH: Lab technicians in clinical pathology laboratory conducting microscopic experimentations Keller, Robert
1938
  • PC/NECH: Lab technicians in clinical pathology laboratory conducting microscopic experimentations