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US Patent: 3,315,367
Electronic Spherometers
Patentees: Thomas A. Walsh (exact or similar names) - Downey, Los Angeles County, CA Ray H. Strasbaugh (exact or similar names) - Downey, Los Angeles County, CA USPTO Classifications: 33/544.5, 33/555 Tool Categories: electrical devices : electronic testing apparatus Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Nov. 27, 1964 Granted: Apr. 25, 1967 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for R. H. Strasbaugh

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