PATENT DRAWING SQUARE MARKER CAPABLE OF ENABLING A USER TO DRAW A DRAFT BY THE STANDARD OFFERED FROM THE PATENT OFFICE

摘要

PURPOSE: A patent drawing square marker is provided to reduce the draft drawing time by marking a standard offered from the patent office with one square ruler, and to improve the work efficiency. CONSTITUTION: A patent drawing square marker(1) comprises a left marker groove(2), a right marker groove(3), an upper marker groove(4), a lower marker groove(5), a draft marker unit(11), and a circular handle(12). The thickness of the patent drawing square marker is the same with a conventional ruler. The shape of the patent drawing square marker is in a rectangular shape.