| http://www.w3.org/ns/prov#value | - As can be seen through a comparison between FIGS. 2A and 2B the relatively straight sided suction ports define a generally planar surface through the ends of each port. [0058] Turning now to FIGS. 3a and 3 b, FIG. 3a is a side view of a suction device 13 shown in FIG. 1.
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