Inventor · disambiguated record

Werner Grommas

Also filed as: GROMMAS WERNER

2 granted patents·22 citations·filing 1981–1987

57Inventor score

Technology areasE21D Y10T

Files withGEWERK EISENHUETTE WESTFALIA2

Top patents by PatentIndex Score

2 records

0159US4790347APressure-relief valve devicesGEWERK EISENHUETTE WESTFALIA·Filed 1987·Granted Dec 13, 1988·20 cites·16 claims
0230US4394875AActuator for a mine roof support unitGEWERK EISENHUETTE WESTFALIA·Filed 1981·Granted Jul 26, 1983·2 cites·11 claims

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