TY  - BOOK
AU  - Vond, George M.,
TI  - Standards of lenght and their practical application: a resume convering the methods emplyed for the production of standard gauges to insure uniformity and interchangeability in every department of manufactures 
AV  - QC101 S73
PY  - 1887///
CY  - Hartford, Connecticut
PB  - Pratt & Whitney
KW  - Normas de longitud
N1  - Subtitulo: including the reports of professor Wm. Rogers ; the Committee on standards and gauges, American Society of Mechanical Engineers ; the Committee of the Master Car-Builders Association ; and including also the report of the Scpeical Committe Appointed by the Franklin Institute, April, 1864
ER  -