Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Magnet structure or material
Patent
1979-09-17
1981-08-11
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Magnet structure or material
335302, H01F 702
Patent
active
042836980
ABSTRACT:
A magnet device for collecting scrap irons in the stomach that which cattle have swallowed into the stomach. The magnet device is constituted by a plurality of magnets and at least a magnetic plate interposed therebetween.
REFERENCES:
patent: 2613246 (1952-10-01), Spodig
patent: 3139403 (1964-06-01), Cramer et al.
patent: 3206657 (1965-09-01), Moriya
patent: 3376529 (1968-04-01), Miyata
patent: 3462720 (1969-08-01), Miyata
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