Canal cleaners

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Patents Grantslast 30 patents

Information Patent Grant
Earth excavating apparatus
- Patent number 5,864,970
- Issue date Feb 2, 1999
- David C. Maddock
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Apparatus for cleaning irrigation ditch
- Patent number 5,003,712
- Issue date Apr 2, 1991
- Rex P. Mitchell
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Automated machinery to clean debris from roadside ditches, collect...
- Patent number 4,109,336
- Issue date Aug 29, 1978
- Donald E. Ford
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
3606047
- Patent number 3,606,047
- Issue date Sep 20, 1971
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING