Mechanized unit for protectively encasing a utility in a trench with processed excavated trench material | Patent Publication Number 20060156589
US 20060156589 A1Patent NumberUS 07310896 B2
Application Number11323141
Filled DateDec 30, 2005
Priority DateNov 24, 2003
Publication DateJul 20, 2006
Original AssigneePlc Trenching Co. Llc
Current AssigneePlc Trenching Co. Llc
Inventor/ApplicantsMichael E. Lopata
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