Abstract
News editors obtained the following quote from the background information suppli ed by the inventors: “A robot including a joint portion including a first wall m ember accommodating a power transmission mechanism and lubricant therein and a s econd wall member supported so as to be rotatable about a predetermined rotation axis with respect to the first wall member has been disclosed (for example, see Japanese Unexamined Patent Application, Publication No. 2009-107116).
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