practical description of Herron's patent trellis railway structure ...

Practical description of Herron's patent trellis railway structure ...

also, the patent wrought iron railway chairs, new and improved mode of joining the ends of railway bars, scarfing timbers, and improved fastenings

by James Herron
2/5
Format
58 pages, [microform]
First published
1841
Publishers
E.G. Dorsey
Subjects
Railroad tracks·Wood·Preservation
Language
English

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