Subject
- Darley, Clarence1
- Demskie, Raymond1
- Demskie, Raymond1
- Demskie, Sylvester1
- Deran, J.P.1
- Detergents1
- Dissolution (Chemistry)1
- Distillation1
- Distillation apparatus1
- Drew, J.P.1
- Engineering1
- Engineers1
- Evaporators1
- Extraction apparatus1
- Fenelon, Stan1
- Fiore, James1
- Fire extinction--Equipment and supplies1
- Forklift trucks1
- Foundry chemistry1
- Hattaway, Hubbie H.1