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Patents > Year granted: 1894 & Inventor location : PA or None

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None (11) · Richard Czygan (4) · Joseph Hofmann (3) · Nicholas H. Borgfeldt (3) · Hermann Ganswindt (2) · Gentil (2) · Hofmann (2) · Ramiro de Palacios (2) · Gustav Koch (2) · Theodor Schneider-Preiswerk (2) · August Riedinger (2) · Wilhelm Goetjes (2) · Arey Van Winegarden (2)
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None (49) · Joseph Hofmann (3) · Theodor Schneider-Preiswerk (2) · Gentil (2) · Hofmann (2) · Richard Czygan (2) · August Riedinger (2)
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Showing below up to 93 results in range #1 to #93.

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