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Claim 1

IN COMBINATION WITH ADJOINING ANGULARLY DISPLACED ABUTTING MEMBERS, EACH OF WHICH IS PROVIDED WITH A CLEAT ALONG THE OUTER MARGINAL SURFACE THEREOF, THE EDGES OF SAID MEMBERS BEING DISPOSED IN AN OVERLAPPING RELATIONSHIP WITH THE OUTER EDGE OF A FIRST CLEAT AND FIRST MEMBER ABUTTING THE INNER MARGINAL SURFACE OF THE SECOND MEMBER ON THE SIDE THEREOF REMOTE FROM THE CLEAT THEREON, SAID CLEATS HAVING ANGULARLY DISPLACED OUTER SURFACES WITH THE OUTER SURFACE OF THE CLEAT ON SAID FIRST MEMBER, THE END OF SAID SECOND MEMBER AND THE OUTER EDGE OF THE CLEAT ON SAID SECOND MEMBER FALLING SUBSTANTIALLY IN A SINGLE PLANE AND PRESENTING A COMMON SURFACE, A CORNER FASTENER DEVICE SECURELY ATTACHING TOGETHER SAID ABUTTING MEMBERS COMPRISING A SUBSTANTIALLY L-SHAPED RESILIENT SPRING MEMBER HAVING TWO LEGS, SAID LEGS EACH INCLUDING A DUALITY OF WIRES IN SPACED PARALLELISM, THE FIRST OF SAID LEGS HAVING A LENGTH WHICH IS SUBSTANTIALLY THE WIDTH OF AND IN JUXTAPOSITION WITH SAID COMMON SURFACE, THE SECOND OF SAID LEGS HAVING A LENGTH WHICH IS SUBSTANTIALLY THE WIDTH OF AND IN JUXTAPOSITION WITH THE OUTER SURFACE OF THE CLEAT ON SAID SECOND MEMBER; A DEPENDING TAB PORTION ON THE END OF EACH OF SAID LEGS EXTENDING INWARDLY SUBSTANTIALLY NORMAL TO ITS ASSOCIATED LEG ON THE SIDE THEREOF ADJACENT THE OUTER LEG, THE TAB PORTION ON SAID FIRST LEG BEING NO GREATER IN LENGTH THAN THE THICKNESS OF THE CLEAT ON SAID FIRST MEMBER AND IN JUXTAPOSITION WITH THE INNER EDGE OF SAID FIRST MEMBER CLEAT, AND THE TAB PORTION ON SAID SECOND LEG BEING NO GREATER IN LENGTH THAN THE THICKNESS OF THE CLEAT ON SAID SECOND MEMBER AND IN JUXTAPOSITION WITH THE INNER EDGE OF SAID SECOND MEMBER CLEAT, ONE OF SAID TAB PORTIONS INCLUDING A CONTINUOUS TRANSVERSE PORTION EXTENDING ACROSS AND INTERCONNECTING THE SPACED PARALLEL WIRE OUTER ENDS OF SUCH TAB PORTION, THE OTHER OF SAID DEPENDING TAB PORTIONS INCLUDING NONCONTINUOUS TRANSVERSE PORTIONS EXTENDING ACROSS AND SUBSTANTIALLY CLOSING THE GAP BETWEEN THE SPACED PARALLEL WIRE OUTER ENDS OF SUCH TAP PORTION TO FORM A SUBSTANTIALLY CLOSED LOOP CORNER FASTENER, SAID LEGS HAVING A RELATIVE ANGULAR DISPLACEMENT LESS THAN THAT OF THE ANGULARLY DISPOSED OUTER SURFACES OF SAID FIRST AND SECOND CLEATS WHEN SAID SPRING MEMBER IS REMOVED THEREFROM WHEREBY THE SPRING MEMBER EXERTS A CONTINUOUS GRIPPING FORCE ON SAID CLEATS TO SECURELY HOLD SAID ABUTTING MEMBERS TOGETHER IN A SUBSTANTIALLY FIXED RIGID RELATIONSHIP AND TO POSITION THE SPRING MEMBER ON SAID CLEATS.