{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Collapsible fixture for manufacture of tunnel tubes", "item": "https://www.patentleaderboard.com/patent/4406151"}]}

Home › Collapsible fixture for manufacture of tunnel tubes

Collapsible fixture for manufacture of tunnel tubes

US Patent 4406151 · Granted Sep 27, 1983

Assignee

Amca International

Inventors

Ole Simonsen (2 patents)
Wining A. Lee (1 patents)
Hung-Kai CHAN (1 patents)

View full patent text on Google Patents →