Combination biological contactor and self-backwashing filter systems

Assignee

• Westech Engineering

Inventors

• Thomas Martin Dumbaugh (1 patents)
• Eric Allen Lawrence (4 patents)
• Rand S Faaborg (3 patents)
• Darrell Wayne Christianson (5 patents)
• Brian Lee Primrose (3 patents)
• Rene Ann Carson (1 patents)

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