| http://www.w3.org/ns/prov#value | - Conductive layers 280, 283 and 291 and slugs 292, 293 and 294 are preferably copper, but can be silver, conductive inks, aluminum, or other conductive materials which are etched or deposited to provide conductors such as printed circuit board conductor (not shown in FIGS. 1-4).
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