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US Patent: 225,436
Dividers
Patentee: James F. Sullivan (exact or similar names) - Fitchburg, MA USPTO Classifications: 33/558.4 Tool Categories: layout tools : compasses : dividers Assignees: None Manufacturer: Unknown Witnesses: Thomas J. Wood Henry Jackson G. F. Connor Jos. P. Livermore	Patent Dates: Applied: Dec. 15, 1879 Granted: Mar. 09, 1880 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: These dividers feature pivoting legs and replaceable points, and are intended for rough use.

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