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Alexander Gray
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Individual
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11,668. Gray, A. June 3. No Patent granted (sealingfee not paid). Tool-holders.-A toolholder has a locking- wedge D which is forced by a screw against an angle 3 formed on the side of a tool C, of square or rectangular section, which lies loosely in a slot in the tool-holder, whereby the tool is forced against the surfaces 1; 2 and is thus immovably held at one point and two surfaces.