H&S TOOL is pleased to announce that it has received notice of allowance from the United States Patent and Trademark Office for one of its pending patent applications directed to H&S unique, proprietary split frame clamshell design. This patent is the first in what H&S expects to be a number of worldwide patents protecting aspects of its recently introduced split frame clamshell line and reflects H&S continuing developmental efforts to bring premier products to the pipe machining industry.