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4184004 | Pines et al. | Jan 1980 | A |
4892150 | Thoman | Jan 1990 | A |
6516594 | Clark et al. | Feb 2003 | B2 |
6651410 | Osha et al. | Nov 2003 | B2 |
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D614817 | LeCompte | Apr 2010 | S |
Number | Date | Country | |
---|---|---|---|
Parent | 12401107 | Mar 2009 | US |
Child | 29360109 | US |