| http://www.w3.org/ns/prov#value | - This material may be secured in the depression of the part 2 by bolts, pins, or screws, as at 7, and may also be perfo-- rated with small holes on its face, as at 8, which are adapted to receive a lubricating material, such as graphite, or equivalent compound, over which the point of the latch 'will easily slide.
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