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All Patents of Type: dynamometers
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
248,612Oct. 25, 1881H. RuddickRecording Dynamometerdynamometers
CA-14,092Jan. 30, 1882H. RuddickPerfectionnement des Dynamometres-Compteursdynamometers
813,324Feb. 20, 1906H. Ruddick, deceased (Estate of), W.H. Ruddick, AdministratorDynamometerdynamometers
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