http://www.freshpatents.com/Unearthing-plants-or-buried-objects-dtnewntc171.php USPTO Class 171 - Unearthing plants or buried objects en-us Thu, 3 Jul 2008 14:13:09 -0700 1000 Wednesday Thursday Friday Saturday Sunday 141 31 http://www.freshpatents.com/index.php?rss=true http://www.freshpatents.com/images/freshpatentsnav_rss.gif http://www.freshpatents.com/Apparatus-for-on-site-cleaning-of-landscape-rock-dt20080626ptan20080149356.php Thu, 3 Jul 2008 14:13:09 -0700 Methods and apparatus are disclosed that pick up and clean landscape rock using air under vacuum pressure. This apparatus provides a means for cleaning and reusing rock that has become aesthetically unattractive instead of removing the old landscape rock and replacing it with new rock. The invention also includes a...