John Lotka

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Registered patent agent John Lotka was recorded as being in Demarest, New Jersey.^[1]

Patents for which John Lotka was the patent agent

Patent US-1913-1089872 (Inventors: Kurt Schultze, English title: Propeller for aircraft)
Patent US-1914-1194037 (Inventors: Carl Kropp, English title: Air propeller and the like)
Patent US-1915-1358430 (Inventors: Hermann Faehrmann, English title: Propeller)

References

↑ US Patent Office. 1903. Roster of Registered U.S. Patent Attorneys, revised. p. 48 on wikisource

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American patent agents