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US Patent: 1,411,491
Drawing Instrument Replacable Tips for Compasses
Patentees: Charles A. Green (exact or similar names) - Chicago, IL Henry F. Schuh (exact or similar names) - Chicago, IL USPTO Classifications: 33/558.04 Tool Categories: layout tools : compasses Assignees: C. F. Pease Co. - Chicago, IL Manufacturer: C. F. Pease Co. - Chicago, IL Witnesses: C. F. Pease W. E. Timmerman	Patent Dates: Applied: Oct. 14, 1920 Granted: Apr. 04, 1922 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: This patent covers a new method of attaching replaceable tips for draftsman's compasses.

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