1 JT921 ISSUE NO. 09PL-08/11 For Replacement Copy Order P/N 053-151 This product is covered by one or more of the following patents:
US 4,953,638; 5,148,880; 5,242,026; 5,341,887; 5,490,569; 5,684,466; 5,713,423, 5,740,703; 5,758,553; 5,794,719; 5,880,680; 5,941,322; 6,085,852C1; 6,109,371; 6,179,065; 6,216,803; 6,250,403; 6,250,404; 6,290,606; 6,311,790; 6,411,094; 6,543,551; 6,550,547; 6,672,409; 6,739,413; 6,761,231; 6,776,246; 6,808,210; 6,827,158; 6,848,506; 6,871,712; 6,896,077; 7,000,710; 7011,166; 7,013,990; 7,018,164; 7,025,152; 7,038,454; 7,111,693; 7,150,331; RE37,450; RE37,923; RE37,975; RE38,418 AU 689,533; 706,544; 718,034, 755,862 CA 2,156,398; 2,217,899 FR 674,093 DE 694 17 019; 695 29 634; 697 28 716; EP 0927892; 1466068 GB 2,312,006; 2,418,553; EP674,093; EP817,901; EP846,841; EP927,892 JP 3,458,247 Other U.S.
and foreign patents pending JT921 Directional Drilling System This manual contains information concerning the following models: Copyright 2005, 2006, 2007, 2008, 2011 by The Charles Machine Works, Inc. , Ditch Witch, CMW, AutoCrowd, Jet Trac, Roto Witch, Subsite, Fluid Miser, Power Pipe, Super Witch, Pierce Arrow, Zahn, The Underground, and The Underground Authority Worldwide are registered trademarks of The Charles Machine Works, Inc. ID0135193