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US Patent: 1,372,738
Method and Machine for Forming Teeth in Saws
Patentee: Sawn O. Bjornberg (exact or similar names) - Chicago, Cook County, IL USPTO Classifications: 409/132, 409/145, 76/112, 76/25.1, 76/38, 76/44 Tool Categories: tool making : making sawblades : saw gummers Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 07, 1919 Granted: Mar. 29, 1921 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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