Assignee
Inventors
- Robert Ortega (7 patents)
{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Valve construction", "item": "https://www.patentleaderboard.com/patent/RE30224"}]}
Skip to contentUS Patent RE30224 · Granted Mar 11, 1980