专利名称：QUICK RELEASE PINstay with my heart
morocco
mangkhut发明人：LOUIS J. ARTIOLI,GIULIO V. SAVIOLI 申请号：US3645160D
申请日：19691007
绿日乐队公开号：US3645160A
公开日：小学英语学习机
19720229
grandcanyon
专利内容由知识产权出版社提供
hi little baby
摘要：The joining of adjacent parts can be quickly and releasably accomplished by an elongated pin containing a unitary torsion member therein provided with flexible arms terminating in looped ends arranged to protrude from the opposite sides of the pin and prevent the withdrawal thereof from the adjacent parts until the pin is pulled with sufficient force to cam the looped ends back into the interior thereof. The torsion member provides a prestress action through the coil portion thereof engaging the walls of a cylindrical recess in the pin and outwardly diverging straight arms extending from the coil portion in linear contact with the wall surfaces of the recess.zgr
草莓英语申请人：ARMY USA
bata
更多信息请下载全文后查看
