HW

Heinz W. Wild

RA Ruhrkohle Ag: 1 patents #23 of 88Top 30%
Overall (All Time): #4,075,972 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4350392 Coal extraction in a longwall working — 1982-09-21