| http://www.w3.org/ns/prov#value | - The following patents are cited as examples of the prior art relating to nozzles useful in the general field of the present invention: Scharpf U.S. Pat. No. 2,128,378 (FIG. 2); Knobel U.S. Pat. No. 2,692,498; Ranfenbarth U.S. Pat. No. 3,099,995 (FIG. 3).
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