| http://www.w3.org/ns/prov#value | - By referring to FIGS. 13A to 13E, described next is the action of the swing slider 4 including the heart cam channel 4A. Specifically, FIG. 13A is a plan view of the swing slider 4, and FIG. 13B is a cross sectional view cut along a B???B line of FIG. 13A. FIG. 13C is a cross sectional view cut along a C???C line of FIG. 13A. FIG. 13D is a cross sectional view cut along a D???D line of FIG. 13A. F
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