专利名称 | SELECTABLE SUPPORT FOR ROLLERS, AND THE LIKE | ||
申请号 | US05440599 | 申请日 | |
公开(公告)号 | US3910519A | 公开(公告)日 | |
申请(专利权)人 | PORTABLE POOL COVERS INC | 发明人 | Martinez |
专利来源 | 国家知识产权局 | 转化方式 | |
摘要 |
A support which enables a roller or axle to assume either an operative or a storage position. The operative position allows the roller or axle to be rotated to result in the winding up of a flexible, sheet material attached to the roller. Once the sheet material is wound onto the roller to the extent desired, the roller is physically moved to the storage position. The storage position renders the roller immobile thus securing the sheet material from unwinding. |
主管部门:海南中小企业服务 | 建设单位:海南商业联合会
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