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US Patent: 863,832
Positive-pressure blower
Patentee: Francis P. Boland (exact or similar names) - Providence, RI USPTO Classifications: 418/265 Tool Categories: industrial machines : blowers trade specific : jeweler Assignees: None Manufacturer: H. J. Astle & Co. - Providence, RI Witnesses: George H. Remington Calvin H. Brown	Patent Dates: Applied: Feb. 18, 1907 Granted: Aug. 20, 1907 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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