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551 PAPER MILL ROAD P. 0. BOX 9206 (57) ABSTRACT NEWARK' DE (Us) The invention discloses a Welded seam (80) between the tWo ... Patent Application Publication Jul. 27, 2006 Sheet 1 0f 10 US 2006/ A1 E1 250/ 22Gb 220a Page 3 of 24.