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Patents for Robert J. Saum
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
983,461Feb. 07, 1911R.J. SaumTool-holder
1,168,428Jan. 18, 1916R.J. SaumTool-holder
1,168,794Jan. 18, 1916J. EnochExpanding mandrel
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