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Patent applications and USPTO patent grants for Zars; Leif Alexander.The latest application filed is for "system for marking an arc segment".
Patent | Date |
---|---|
System for marking an arc segment Grant 6,904,697 - Zars June 14, 2 | 2005-06-14 |
Safety swimming pool replacement drain cover apparatus and method Grant 6,817,043 - Zars November 16, 2 | 2004-11-16 |
System for marking an arc segment App 20040163271 - Zars, Leif Alexander | 2004-08-26 |
Safety swimming pool replacement drain cover apparatus and method App 20040093666 - Zars, Leif Alexander | 2004-05-20 |
Safety device and method for swimming pool drain protection Grant 6,341,387 - Zars January 29, 2 | 2002-01-29 |
Main drain safety grate apparatus Grant 6,170,095 - Zars January 9, 2 | 2001-01-09 |
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