@BrianRoemmele I'm patenting putting the roller the other way as an improvement. Pay me, reverse rollers.
@BrianRoemmele 我正在申请专利，以另一种方式放置滚筒作为改进。付钱给我，反向滚轮。
@BrianRoemmele I'm patenting putting the roller the other way as an improvement. Pay me, reverse rollers.
@BrianRoemmele 我正在申请专利，以另一种方式放置滚筒作为改进。付钱给我，反向滚轮。