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US Patent: 1,446,547
Valve for pneumatic tools
Patentee: John Marshall Crowe (exact or similar names) - Covington, KY USPTO Classifications: 137/625.22, 137/625.23, 137/625.43, 173/135, 173/211, 91/470 Tool Categories: industrial tools : pneumatic tools Assignees: John Marshall Crowe - Covington, KY Louis K. De Bus - Cincinnati, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 22, 1919 Granted: Feb. 27, 1923 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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