Calculators

Historical Document · 1956

US Patent 2,775,404: Navigational Computers (United Air Lines)

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A circular navigational computer resolving airspeed into components; marked on Jeppesen's CR-2.

Author
Harold R. Lahr
Year
1956
Type
Historical Document
Credit
US Patent and Trademark Office; via Google Patents.

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US Patent 2,775,404: Navigational Computers (United Air Lines)