Varian, Dorothy, 1907- The inventor and the pilot : Russell and Sigurd Varian / by Dorothy Varian.

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Varian, Dorothy, 1907-

The inventor and the pilot : Russell and Sigurd Varian / by Dorothy Varian.

Varian, Russell Harrison, 1898-1959.

Varian, Sigurd Fergus, 1901-1961.

Electronic industries -- United States -- Biography.