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Patents for Ralph William Jorres
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
406,219Jul. 02, 1889R.W. JorresMachine for forming ornamental spiral groovesrouting machines
667,981Feb. 12, 1901R.W. JorresMachine for turning bobbinsspool or bobbin machines
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