Zingerman; David
Patent Applications and Registrations
Patent applications and USPTO patent grants for Zingerman; David.The latest application filed is for "self-lifting vertically rising mast".
- Zingerman; David - Los Angeles CA
| Patent | Date |
|---|---|
| Sling-traverse device for massive object lifting system Grant 6,981,824 - Zingerman January 3, 2 | 2006-01-03 |
| Self-lifting vertically rising mast Grant 6,843,030 - Zingerman January 18, 2 | 2005-01-18 |
| Self-lifting Vertically Rising Mast App 20040226258 - Zingerman, David | 2004-11-18 |
| Method and system for lifting of the massive constructions Grant 6,808,338 - Zingerman October 26, 2 | 2004-10-26 |
| Method and system for lifting of the massive constructions App 20040175241 - Zingerman, David | 2004-09-09 |
| Sling-traverse Device For Massive Object Lifting System App 20040141813 - Zingerman, David | 2004-07-22 |
| Self-propelled crane Grant 6,669,038 - Zingerman December 30, 2 | 2003-12-30 |
| Portable lifting device App 20020084238 - Zingerman, David | 2002-07-04 |
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