Results: 1 - 5 of 5
Dec 31, 1977
Open File Report
… m) or greater in thickness and aggregate thicknesses of all seams … greater in thickness but with an aggregate thickness of 5 ft (1.5 m) …
Aug 02, 2006
Data
Aug 02, 2006
Data
Aug 02, 2006
Data
Dec 31, 1977
Open File Report
… the best seam thickness and the aggregate footages of all seams 3 …