Inventor · disambiguated record

William J. Happel

Also filed as: HAPPEL WILLIAM J

1 granted patent·55 citations·filing 1991–1991

49Inventor score

Technology areasF04B

Files withMAGNETEK INC1

Top patents by PatentIndex Score

1 record

0178US5204595AMethod and apparatus for controlling a walking beam pumpMAGNETEK INC·Filed 1991·Granted Apr 20, 1993·55 cites·10 claims

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