Knock-down table and desk construction

Claim 1

A DESK OR TABLE CAPABLE OF RAPID ASSEMBLY AND DISASSEMBLY, AND COMPRISING: A PAIR OF RIGID END UNITS, EACH HAVING INWARDLY FACING UPPER FRONT, UPPER REAR, AND LOWER JOINT STATIONS, EACH JOINT STATION INCLUDING A PLANAR JOINT SURFACE POSITIONABLE OPPOSITE THE PLANAR JOINT SURFACE OF THE CORRESPONDING JOINT STATION ON THE OTHER END UNIT, AND A HOOK SUPPORT ADJACENT SUCH PLANAR JOINT SURFACE; AND SEPARATE UPPER FRONT, UPPER REAR AND LOWER CROSS MEMBERS, EACH CROSS MEMBER HAVING TWO SQUARED ENDS AND A HOOK AT EACH END, WITH THE UPPER FRONT CROSS MEMBER BEING INDEPENDENTLY INTERCONNECTABLE BETWEEN THE UPPER FRONT JOINT STATIONS OF THE END UNITS MERELY BY HOOKING THE END HOOKS OF SUCH CROSS MEMBER OVER THE HOOK SUPPORTS AT SUCH STATIONS, WITH THE UPPER REAR CROSS MEMBER BEING INTERCONNECTABLE BETWEEN THE UPPER REAR JOINT STATIONS OF THE END UNITS MERELY BY HOOKING THE END HOOKS OF SUCH CROSS MEMBER OVER THE HOOK SUPPORTS AT SUCH STATIONS, WITH THE LOWER CROSS MEMBER BEING INDEPENDENTLY INTERCONNECTABLE BETWEEN THE LOWER JOINT STATIONS OF THE END SUPPORTS MERELY BY HOOKING THE END HOOKS OF SUCH CROSS MEMBER OVER THE HOOK SUPPORTS AT SUCH STATIONS, AND WITH THE SQUARED ENDS OF THE CROSS MEMBERS MAKING SUBSTANTIALLY TIGHT ABUTTING CONTACT WITH THE PLANAR JOINT SURFACES AT THE JOINT STATIONS WHEN THE HOOKS ARE IN PLACE, RESULTING IN THE JOINTS SO FORMED BEING SUBSTANTIALLY FIXED AND THE ASSEMBLED DESK OR TABLE BEING A SUBSTANTIALLY RIGID STRUCTURE.