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US Patent: 914,783
Sand-blast machine
Patentee: Francis P. Boland (exact or similar names) - Providence, RI USPTO Classifications: 291/11.1, 406/143, 451/102, 451/89 Tool Categories: industrial tools : sand blasters trade specific : jeweler Assignees: None Manufacturer: H. J. Astle & Co. - Providence, RI Witnesses: George H. Remington Henry P. Stone	Patent Dates: Applied: Nov. 27, 1908 Granted: Mar. 09, 1909 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for H. J. Astle & Co.

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