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Home › Technique for providing an underground tunnel utilizing a powered boring device

Technique for providing an underground tunnel utilizing a powered boring device

US Patent 4896733 · Granted Jan 30, 1990

Estimated economic value: $641,000 ⓘ

Assignee

Flowmole

Inventors

Glen Baker (5 patents)
Albert W. Chau (183 patents)
James A. Fikse (8 patents)
John E. Mercer (274 patents)

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