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Patents for Mary Birdsall
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
403,321May 14, 1889E.M. BirdsallTraction Wheelsteam traction engines
403,455May 14, 1889E.M. BirdsallValve Geartraction engine valve gear
404,157May 28, 1889E.M. BirdsallTraction Enginesteam traction engines
415,438Nov. 19, 1889E.M. BirdsallSteam-enginesteam engines
415,439Nov. 19, 1889E.M. BirdsallTraction Enginesteam traction engines
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