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Patents for E. J. Worcester
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
99,803Feb. 15, 1870E.J. WorcesterImproved drilling-machinedrill presses
110,530Dec. 27, 1870E.J. WorcesterImprovement in boring-machinesdrilling and boring
197,711Nov. 27, 1877E.J. WorcesterImprovement in machines for grinding lawn-motor cuttergrinders
274,243Mar. 20, 1883E.J. WorcesterDrilling-machinedrill presses
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