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

بواسطة James Herron
2/5
شكل
58 الصفحات, [microform]
نشرت لأول مرة
1841
الناشرون
E.G. Dorsey
المواد الدراسيه
Railroad tracks·Wood·Preservation
لغة
English

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