OPELLED BY ELECTRICITY. ward. By a simple lever arrangement either pair of brushes these so-called disease-ferments. The porous, internal sur- Our engraving shows the small boat propelled by elec- can be pressed at will against the segments of the commuta- face of a wooden fermenting vat, with its… … steel is maintained, notwithstanding the reheating and even conducts heat more readily than wood. With regard to the NEW ELECTRIC BOAT. forging; it is permanent and indelible whatever be the sub- latter objection we do not consider it a very serious one, for 25 feet long, 5 feet beam, drawing 31…
Patented · Patents · Seeds · Color · Scientific American · Oil press · Loosely mounted · Design patent · Salt water · American dictionary · Patent office · Short time · Patent law · Illustrated catalogue
Internet Archive · Public domain (published before 1931). Free to use for anything.
