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

nipasẹ James Herron
2/5
Ọna kika
58 awọn oju-iwe, [microform]
Atejade akọkọ
1841
Awọn olutẹwe
E.G. Dorsey
Koko ọrọ
Railroad tracks·Wood·Preservation
Ede
English

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