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US Patent: 620,568
Glass-working machine
Patentee: Irving W. Colburn (exact or similar names) - Toledo, OH USPTO Classifications: 65/173, 65/228, 65/301, 65/302, 65/355 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: Alexander S. Steuart Henry H. Bates	Patent Dates: Applied: Feb. 26, 1898 Granted: Mar. 07, 1899 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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