, while a string been earnestly striving to meet by the use of anti-mag- of carpenter's spikes, placed lengthwise one against an- of the wholesale deterioration of their property, but in netic shields, composition balance wheels, etc. other, stood out between three and four feet horizon- increased… … The direction in which scientific men testing the non-magnetizable quality of TESTING WALTHAH WATCHES WITH A HOBSESHOE MAGNET. have been experimenting of late years, these watches. The use of dynamos is with a view to solving this difficult now becoming so general that one never What seems to have…
Iron · Patented · Reis · Illustrated · Patents · Magnet · Scientific American · Perspective view · Life saving · Hot water · Device fob · Field magnet · Wrought iron · American supplement · Cast Iron · Hot air
Internet Archive · Public domain (published before 1931). Free to use for anything.
