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US Patent: 2,144,043
Internal grinding machine
Patentee: Harry Hales Asbridge (exact or similar names) - Ashton-on-Mersey, England USPTO Classifications: 451/221 Tool Categories: metalworking machines : grinders : internal grinders Assignees: Churchill Machine Tool Co., Ltd. - Broadheath, England Manufacturer: Churchill Machine Tool Co., Ltd. - Broadheath, England Witnesses: Unknown	Patent Dates: Applied: Mar. 21, 1938 Granted: Jan. 17, 1939 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Churchill Machine Tool Co., Ltd.

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