http://v3.espacenet.com/origdoc?DB=EPODOC&IDX=US3297021&F=0&QPN=US3297021
ʂ̃TCgɃWv悤ƂĂ܂BXΏL̃NNbNĂ
UPLIFTōLȂő̌܂傤IKȉ{Ct܂I