Historical Document · 1937

US Patent 2,097,116: Plotting and Computing Device (Philip Dalton, E-6B)

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The patent marked on wartime E-6Bs: a rotating plotting disc over a chart strip on rollers; filed 30 June 1936, granted 26 October 1937.

Author

Philip Dalton

Year

1937

Type

Historical Document

Credit

US Patent and Trademark Office; via Google Patents.

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