William L. Hall
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American patent agent William L. Hall was recorded as being at 204 Dearborn Street, in Chicago.[1]
Patents for which William L. Hall was the patent agent
- Patent US-1910-1068651 (Inventors: De Bert Hartley, English title: Flying-machine)
- Patent US-1912-1068652 (Inventors: De Bert Hartley, English title: Flying-machine)
- Patent US-1912-1123737 (Inventors: De Bert Hartley)
- Patent US-1913-1131779 (Inventors: De Bert Hartley, English title: Aerohydroplane flying-machine, Supplementary to patent: Patent US-1910-1068651)
- Patent CA-1914-160569 (Inventors: De Bert Hartley, English title: Flying machine)
- Patent CA-1914-163658 (Inventors: De Bert Hartley, English title: Flying boat)
