| http://www.w3.org/ns/prov#value | - Permanent magnets fabricated using a variety of metals, e.g. Neodymium or Iron, and compounds, e.g. AInico, Mumetal (an alloy of ca. 25% iron, 75% nickel, and small proportions of other elements) and compounds of rare earth elements, including Samarium-Cobalt and Neodymium-lron-Boron (NIB) are available commercially in sizes and configurations suitable for all of the embodiments described supra.
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