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US Patent: D393,219
Plumb bob
Patentees: Michael S. McGuire (exact or similar names) - Ottawa, ON Canada Jerrold R. Beall (exact or similar names) - Newark, OH USPTO Classifications: D10/65 Tool Categories: layout tools : plumb bobs Assignees: Lee Valley Tools Ltd. - Ontario, ON Canada Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 13, 1997 Granted: Apr. 07, 1998 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Russ Allen

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