Improved railroad-car springs
Subtitle: wrought-iron wheels and axles, steel, and files
By: manufactured by Charles Cammell & Company, Cyclops Steel and Iron Works, Sheffield.
Publisher: J.A. Gray, printer
Published: 1857
Place of publication: New York
Language: eng
Number of pages: 13
Subjects: Railroad cars; Railroad cars -- Springs and suspension
Other titles: Important improvements in railroad machinery
Notes: Cover title: Important improvements in railroad machinery, by Charles Cammell & Co., Cyclops Steel Works, Sheffield.