Inventor · disambiguated record

Earl C. Willis

Also filed as: WILLIS EARL C

1 granted patent·79 citations·filing 1981–1981

51Inventor score

Technology areasE21F

Files withPEABODY COAL CO1

Top patents by PatentIndex Score

1 record

0186US4380353ADust control system and method of operationPEABODY COAL CO·Filed 1981·Granted Apr 19, 1983·79 cites·23 claims

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