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Ralph Edgar Gould

4 cilt bulundu.

Cilt sonuçları

TimeTesting of timepiecesRalph Edgar Gould

Testing of timepieces

Ralph Edgar Gould · U.S. Govt. print. off.

26 sayfa · 1931

Clocks and watches / Systems and standards / Time

TimeStandard time throughout the worldRalph Edgar Gould

Standard time throughout the world

Ralph Edgar Gould · U.S. G.P.O.

24 sayfa · 1932

Systems and standards / Time

SundialsSundialsRalph Edgar Gould

Ralph Edgar Gould · U.S. Govt. Print. Off.

Sayfa sayısı yok · 1933

Sundials

CiltCircular of the Bureau of Standards No. 392Ralph Edgar Gould

Circular of the Bureau of Standards No. 392

Ralph Edgar Gould · Creative Media Partners, LLC

Sayfa sayısı yok · 2021

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