Importance

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Abstract

and a height “Z”, such that Z>2X. On the item having the tenon, at each of the two opposing locations defined by the intersection of the tenon with the shoulder of the item from which the tenon is cut (and also defining a shoulder line from shoulder to shoulder), an additional undercut is given at a minimal, linear displacement sufficient to enable, upon joinder, the mated surfaces of the two items to appear in flush, contiguous, void-free abutment with minimal reduction in the strength of the join. The tenon further has a substantially rectangular peg-receiving aperture set at distance substantially equal to X from the shoulder line, and having a height “H”, such that H=X. A locking peg has a cross-section substantially conforming with the peg-receiving aperture. Rounding of the peg proximate to the undercuts is made with a rounder at a radial rounding substantially equal to (½)Y. The product of the method is also shown.

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First Claim