{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Technique for providing an underground tunnel utilizing a powered boring device", "item": "https://www.patentleaderboard.com/patent/4821815"}]}

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 4821815 · Granted Apr 18, 1989

Estimated economic value: $298,000 ⓘ

Assignee

Flowmole

Inventors

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

View full patent text on Google Patents →