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US Patent: 755,734
Valve Operating Mechanism
Patentee: Thomas Barrow (exact or similar names) - Plainfield, Union County, NJ USPTO Classifications: 251/289, 74/469 Tool Categories: industrial machines : industrial machine mechanisms : industrial control apparatus industrial tools : industrial valves Assignees: Pedrick & Ayer Co. - Plainfield, Union County, NJ Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 13, 1903 Granted: Mar. 29, 1904 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Pedrick & Ayer

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