Robert M. Norman

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Lafayette, LA, US

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Patents Grantslast 30 patents

Information Patent Grant
Underwater trenching system
- Patent number 4,586,850
- Issue date May 6, 1986
- Robert M. Norman
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Oscillating jet head underwater trenching apparatus
- Patent number 4,389,139
- Issue date Jun 21, 1983
- Robert M. Norman
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Self-propelled underwater trenching apparatus and method
- Patent number 4,274,760
- Issue date Jun 23, 1981
- Robert M. Norman
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING