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william c maurer
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Cilt sonuçları
Patent Search and Review on Roller-bit Bearings, Seals, and Lubrication Systems
Maurer Engineering, Inc, William C. Maurer · Yayınevi bilinmiyor
184 sayfa · 1975
Bits (Drilling and boring)
Annual Report on the Project to Design and Experimentally Test an Improved Geothermal Drill Bit
Terra Tek, Inc, L.M. Barker, S.J. Green, W.C. Maurer, L.K. DeVries · Yayınevi bilinmiyor
36 sayfa · 1976
Bits (Drilling and boring)