Friedrich von Lethmate patent, 1698.
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Lethmate, Friedrich von.
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Friedrich von Lethmate was granted a patent of nobility by King Leopold I of the Holy Roman Empire in 1698. From the description of Friedrich von Lethmate patent, 1698. (New York Public Library). WorldCat record id: 144652399 ...
Leopold I, Holy Roman Emperor, 1640-1705
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