公开(公告)号：USD908399S1

公开(公告)日：2021-01-26

申请号：US29672066

申请日：2018-12-03

申请人： James Joseph Tribble

设计人： James Joseph Tribble

公开(公告)号：US20200315364A1

公开(公告)日：2020-10-08

申请号：US16378523

申请日：2019-04-08

申请人： James Joseph Tribble

发明人： James Joseph Tribble

IPC分类号： A47C21/02 ,  F16B2/22

摘要： A sheets and coverings retaining device is described which includes a top shell with a pressure bar affixed perpendicular to its surface and a bottom shell with a pressure bar affixed perpendicular to its surface wherein a sheet or other covering that is placed between the two shells is retained by the friction of the pressure bars making contact with the upper and lower shells when the shells are closed upon the sheet or covering.