said {HEAD ~ upper surface} of {TAIL ~ said clasp upper part} being disposed in a first plane , and said edges of said open underside of said clasp upper part being disposed in a second plane , said first plane being inclined relative to said second plane  
of
said { HEAD ~ upper surface } of { TAIL ~ said clasp upper part } being disposed in a first plane , and said edges of said open underside of said clasp upper part being disposed in a second plane , said first plane being inclined relative to said second plane
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH