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US Patent: 1,513,024
Reamer Head
Patentees: Emil Leonard Baumann (exact or similar names) - Munich-Gladbach, Germany Hermann Schumacher (exact or similar names) - Neuss, Germany USPTO Classifications: 33/628, 408/150 Tool Categories: metalworking machines : drilling and boring : drill bits : reamers Assignees: None Manufacturer: Not known to have been produced Witnesses: none listed	Patent Dates: Applied: Jun. 24, 1920 Granted: Oct. 28, 1924 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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