Showing 1 - 20 results of 31 for search '"Davidson, William D."', query time: 1.10s Refine Results  

Draw works

by DAVIDSON WILLIAM D
Year of Publication 03.04.1934
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Patent

Crown block

by DAVIDSON WILLIAM D
Year of Publication 19.01.1932
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Patent

Crown block

by DAVIDSON WILLIAM D
Year of Publication 02.12.1930
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Patent

Pipe slip

by DAVIDSON WILLIAM D
Year of Publication 31.05.1927
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Patent