{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Apparatus and method for indicating sound levels", "item": "https://www.patentleaderboard.com/patent/4277980"}]}

Home › Apparatus and method for indicating sound levels

Apparatus and method for indicating sound levels

US Patent 4277980 · Granted Jul 14, 1981

Assignee

Unknown
Unknown
Unknown

Inventors

Montgomery R. Coats (4 patents)
Turner C. Pendleton, deceased (1 patents)
Reine H. Pendleton (1 patents)

View full patent text on Google Patents →