David L. Childs

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Madisonville, KY, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of charging a borehole
- Patent number RE31953
- Issue date Jul 23, 1985
- Austin Powder Company
- Brooke J. Calder
- 086 - Ammunition and explosive-charge making
Information Patent Grant
Carrier for explosive primer and method of using same
- Patent number RE30621
- Issue date May 26, 1981
- Austin Powder Company
- Brooke J. Calder
- 102 - Ammunition and explosives
Information Patent Grant
Carrier for explosive primer and method of using same
- Patent number 4,141,296
- Issue date Feb 27, 1979
- Austin Powder Company
- Brooke J. Calder
- C06 - EXPLOSIVES MATCHES
Information Patent Grant
Carrier for explosive primer and method of using same
- Patent number 4,133,247
- Issue date Jan 9, 1979
- Austin Powder Company
- Brooke J. Calder
- C06 - EXPLOSIVES MATCHES