Knock-down showcase

Claim 1

A FRONT FRAME STRUCTURE FOR A KNOCK-DOWN SHOWCASE, SAID STRUCTURE COMPRISING AN INVERTED CHANNELSHAPED TOP STRETCHER HAVING A FLANGE INTEGRAL WITH THE FREE EDGE OF ONE WALL OF THE CHANNEL AND PROJECTING LATERALLY THEREFROM, A PAIR OF END UPRIGHT MEMBERS EACH RIGIDLY CONNECTED AT ITS UPPER END TO ONE END OF SAID TOP STRETCHER AND DEPENDING THEREFROM, EACH OF SAID UPRIGHT MEMBERS BEING SUBSTANTIALLY L-SHAPED IN SECTION, A BOTTOM STRETCHER DETACHABLY SECURED AT ITS ENDS TO THE LOWER ENDS OF THE UPRIGHT MEMBERS, SAID BOTTOM STRETCHER BEING SUBSTANTIALLY L-SHAPED IN SECTION, A REFLECTOR DETACHABLY SECURED TO SAID TOP STRETCHER, AND A DUCT DETACHABLY SECURED TO ONE OF SAID END UPRIGHT MEMBERS, SAID DUCT BEING ADAPTED TO RECEIVE ELECTRIC WIRES THERETHROUGH, SAID DUCT AND SAID REFLECTOR COOPERATING TO HELD RETAIN A PANEL IN SAID FRONT FRAME STRUCTURE.