Butwin; Robert S.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Butwin; Robert S..The latest application filed is for "layout tool for laying out perpendicular lines".
- Butwin; Robert S. - Allendale NJ
| Patent | Date |
|---|---|
| Layout tool for laying out perpendicular lines Grant RE38,032 - Butwin March 18, 2 | 2003-03-18 |
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