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Patents for John W. Griffiths
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
11,784Oct. 10, 1854J.W. GriffithsImprovement in construction of ships
34,360Feb. 11, 1862J.W. GriffithsImprovement in ship-building
171,376Dec. 21, 1875J.W. GriffithsImprovement in machines for bending woodwood bending machines
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