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John Benjamin Henck

Wikipedia: John Benjamin Henck

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Field-Book For Railroad Engineers. Circu
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Field-Book For Railroad Engineers. Containing Formul For Laying Out Curves, Determining Frog Angles, Levelling, Calculating Earth-Work, Etc., Etc., Together With Tables Of Radii, Ordinates, Deflections, Long Chords, Magnetic Variation, Logarithms, Logarit
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Field-Book For Railroad Engineers. Containing Formul For Laying Out Curves, Determining Frog Angles, Levelling, Calculating Earth-Work, Etc. Etc., Together With Tables Of Radii, Ordinates, Deflections ... Tangents. Etc., Etc. By John B. Henck ...
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Field-Book For Railroad Engineers. Conta
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Field-Book For Railroad Engineers
Containing Formulae For Laying Out Curves, Determining Frog Angles, Levelling, Calculating Earth-Work, Etc., Etc., Together With Tables Of Radii, Ordinates, ... »

Field-Book For Railroad Engineers.
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John Benjamin Henck

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