John S. Campbell

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Maharastra, IN

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Patents Grantslast 30 patents

Information Patent Grant
Water-in-oil emulsion explosives and a method for the preparation o...
- Patent number 4,409,044
- Issue date Oct 11, 1983
- Indian Explosives Limited
- Dhirendra N. Bhattacharyya
- C06 - EXPLOSIVES MATCHES