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n4freepatentsonline.
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isa:27435979
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1, it will there be seen that an illustrative embodiment of the invention is denoted as a whole by the reference numeral 10.Tool 10 includes a rigid, preferably metallic tube 12 having an external diameter of about an eighth of an inch (0.125???) and an internal diameter a little more than half that, depending upon the thickness of the metal, hard plastic, or other material of which said tube is m
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