Subject
- Defense industries12
- Demskie, Raymond1
- Demskie, Raymond1
- Demskie, Sylvester1
- Deran, J.P.1
- Detergents1
- Detonators54
- Dissolution (Chemistry)1
- Distillation1
- Distillation apparatus1
- Drew, J.P.1
- Employees129
- Engineering1
- Engineers1
- Entomology2
- Entomology--Research2
- Ethylcellulose14
- Evaporators1
- Explosives112
- Explosives industry57