(under the class definition) Apparatus for burning in or wearing in the bearings of engines, usually internal-combustion engines, and running in or oil burnishing to limber the bearings and to test for detection of oil leakage at the joints of the casings.
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404, for a process of treating or assembling a part or parts while effecting similar forces or maintaining a similar environment to substantially duplicate those forces or environmental factors encountered in actual use of the part or parts.
