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Patents for Walter J. Johnson
Patents 1 - 6 of 6
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
  2,464,381Mar. 15, 1949W.J. Johnson, E. DonaldsonCoupling
  2,650,512Sep. 01, 1953C.G. Ertell, W.J. JohnsonPipe Wrench with Nut Fulcrumed Pivoted Outer Jaw
2,656,751Oct. 27, 1953W.J. Johnson, C.G. ErtellReplaceable Jaw Insert for Pipe Wrenches
  2,706,424Apr. 19, 1955W.J. JohnsonReversible Ratchet Wrench
2,719,449Oct. 04, 1955W.J. JohnsonOpen End Wrench Locking Means
2,772,763Dec. 04, 1956W.J. JohnsonRatchet Wrench
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