Abstract: The Monarch anchor is a nut & bolt system specially designed to be pushed through a hole wide enough to allow the bolt with collapsed wings fitted at its back end through, but not wide enough to let the bolt with stretched wings slip back. It is designed to be firmly placed on the wall with the front end of the outer nut locked at the front surface of the wall by a flange and the stretched wings locked at the back surface of the wall. Thus it can act as a firm support on the wall when an item is bolted through the inner nut of the anchor.

Abstract: A device capable of keeping track of numbers that occur in the same row, same column and the 3×3 grid involved in a particular square of a specific sudoku puzzle, thus identifying all of the numbers excluded for that square and revealing the unique remaining number from the list of 1 through 9 as the solution for the square, repetition of which process for each of the remaining empty squares ultimately yielding a complete solution for the sudoku puzzle.

Abstract: A mat with a textured surface capable of creating a corresponding texture on soft coating of joint compound on drywall surface by being pressed lightly on the compound, thus rendering the drywall textured.