Electricity in the Service of Man Alfred Urbanitzky (ritter von) Published: 1886 Total Pages: 902 Get eBook
Electricity in the Service of Man Alfred Ritter von Urbanitzky Published: 1886 Total Pages: 920 Get eBook
Subject-matter Index of Patents Applied for and Patents Granted, for the Year ... Great Britain. Patent Office Published: 1857 Total Pages: 580 Get eBook
The Repertory of patent inventions [formerly The Repertory of arts, manufactures and agriculture]. Vol.1-enlarged ser., vol.40 Published: 1771 Total Pages: 632 Get eBook
