A motor-magnet is being used in America to clear roads of nails and pieces of metal that bring disaster on tyres. The electro-magnet is fastened behind a lorry, and is powerful enough to attract and hold pieces of iron weighing several pound*.
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https://paperspast.natlib.govt.nz/newspapers/SUNAK19281231.2.23.2
Bibliographic details
Sun (Auckland), Volume II, Issue 550, 31 December 1928, Page 1
Word Count
42Page 1 Advertisements Column 2 Sun (Auckland), Volume II, Issue 550, 31 December 1928, Page 1
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