BLAND, Associate Judge.
Appellants have here appealed from the decision of the Board of Appeals of the United States Patent Office affirming the decision of the Primary Examiner rejecting claims 13 to 17, inclusive, of appellants' application for a patent for alleged improvements in sulphur containing lubricants.
Modern internal combustion engines employ cadmium and copper-lead mixtures in bearings, taking the place of the old tin-babbitt type. This new material...
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