Curving of glass sheets by {HEAD ~ application} of said sheets against {TAIL ~ an upper curving form} and possibly subsequently, after the deposit of said sheets onto a lower curving form, by depressing in accordance with said upper form is improved 
against
Curving of glass sheets by { HEAD ~ application } of said sheets against { TAIL ~ an upper curving form } and possibly subsequently , after the deposit of said sheets onto a lower curving form , by depressing in accordance with said upper form is improved
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH 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