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Are you J. Geiger, author of the books below?
Frozen in Time by Owen Beattie First Hall of Fame, The by J. Geiger Mechanische Schwingungen und ihre Messung by J. Geiger Gotthard-Furka-Grimsel-Susten by J. Geiger Entr'acte by J. Geiger Beiträge zur Technischen Mechanik und Technischen Physik by W. Bäseler Der Indikator by K.J. De Juhasz Der Indikator by K.J. De Juhasz


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