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The top documents tagged [howard perko]
Copyright © 2010 Howard Perko All Rights Reserved Magnum Bulletin ISO-GEN1-11A HELICAL PILE/ANCHOR CASE HISTORIES AND ASSOCIATED LESSONS LEARNED Presented
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Helical Pile Applications in Oil and Gas Industry* *an excerpt from the DFI Fall 2010 Technical Presentation by Howard A. Perko, Ph.D., P.E. 1 and Wayne
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