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

por James Herron
2/5
Formato
58 páginas, [microform]
Primeira Publicação
1841
Editores
E.G. Dorsey
Sujeitos
Railroad tracks·Wood·Preservation
Linguagem
English

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