The International Society for Trenchless Technology

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1988

- Winner: Gas Research Institute; Maurer Engineering & Allied Steel & Tractor Products
- Commended: Nippon Telegraph & Telephone Corp


Category Name or Company CountryReason for Award
WinnerGas Research Institute; Maurer Engineering & Allied Steel & Tractor ProductsUSAFor the Hole Hog Guided Piercing Tool
CommendedNippon Telegraph & Telephone CorpJapanFor the ACE Mole Model 351

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