发明名称 FLUID PRESSURE DIFFERENTIAL FULL BAG INDICATOR FOR FLUID OPERATED CLEANERS
摘要 <p>There is provided a bag condition indicator which is calibrated by movement of it along the structure it is mounted to, to thereby vary an aperture leading into the bay condition indicator.</p>
申请公布号 CA1197146(A) 申请公布日期 1985.11.26
申请号 CA19820402560 申请日期 1982.05.07
申请人 HOOVER COMPANY (THE) 发明人 SPECHT, GLENN E.
分类号 A47L9/19;(IPC1-7):A47L9/19 主分类号 A47L9/19
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