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Patents for E. Schaferr
Patents 1 - 2 of 2
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PictureNumberDatePatenteeTitle
40,650Nov. 17, 1863I. Straub, A. StraubImproved artificial variegated marble
40,651Nov. 17, 1863I. Straub, A. StraubImproved asphaltic paving or flag stone
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