Abstract: An architectural construction game including a building board is described herein. The building board includes a rectangular rigid board having recessed cavities in three corners and a transparent protecting sheet. A piece of VELCRO-type hook fastening material is provided in each cavity while pieces of VELCRO-type loop fastening material are provided on the undersurface of the protecting sheet so as to overly the cavities. The contact between the VELCRO-type hook fastening material and the VELCRO-type loop fastening material maintain the protective sheet onto the board. A plan may be inserted between the board and the protective sheet so as to assist in the assembly of an architectural construction.

Abstract: A dental apparatus for accurately measuring dentures comprises a C-shaped body, a horizontal ruler and a vertical ruler. The rulers are graduated and movable to determine the distance of the teeth from the center of the ridge and the intermaxillary distance of the two dentures.

Abstract: A telemetric spacial data recorder for devising a floor plan is disclosed herein. The telemetric spacial data recorder includes a base member and a remote member mounted to the base member through an extendable cable which is rotatably mounted to said base member. The remote member has a probe. The length of the extendable cable and the angle of the extendable cable with respect to a predetermined reference are measured and supplied to a data collector which computes the spacial coordinates of the probe. Optionally, the probe may include a rotatable boom.