{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Sonar depth finder with relative depth LCD display", "item": "https://www.patentleaderboard.com/patent/4644512"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Sonar depth finder with relative depth LCD display

US Patent 4644512 · Granted Feb 17, 1987

Assignee

Inventors

View full patent text on Google Patents →