prov:value
| - In addition to the metallic powders used in the preceding examples, it is also contemplated that antimony, zinc, bismuth, tin, aluminum, magnesium, selenium, arsenic, cadmium, tellurium, and alloys thereof, such as alloys of cadmium and zinc, cadmium and tin, bismuth and zinc, bismuth and tin, and other similar soft metallic elements and alloys of such elements might be useful in the lubricant com
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