Engineering Research Associates. High-speed computing devices / Supervised by C.B. Tompkins and C.H. Wakelin ; edited by W.W. Stifler, Jr.

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Engineering Research Associates.

High-speed computing devices / Supervised by C.B. Tompkins and C.H. Wakelin ; edited by W.W. Stifler, Jr.

Calculators.

1950.

Tompkins, Charles Brown, 1912-