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US Patent: 1,850,742
Spring testing device
Patentee: James G. Collins (exact or similar names) - Kalamazoo, MI USPTO Classifications: 73/161 Tool Categories: Assignees: Atlas Press Co. - Kalamazoo, MI Manufacturer: Atlas Press Co. - Kalamazoo, MI Witnesses: Unknown	Patent Dates: Applied: Sep. 21, 1928 Granted: Mar. 22, 1932 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Atlas Press Co.

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