发明名称 Gutter cleaning system
摘要 The invention constitutes a gutter cleaning system which includes a canister type vacuum cleaner with tubular wand sections with a nozzle adapted to be inserted into a gutter to remove debris therein. The nozzle carries an optical viewing system such as a fiber optic device or a television camera enabling the operator to observe the cleaning operation as it is performed.
申请公布号 US5195209(A) 申请公布日期 1993.03.23
申请号 US19910745534 申请日期 1991.08.15
申请人 WATKINS, RICHARD L. 发明人 WATKINS, RICHARD L.
分类号 A47L5/36;A47L9/02;E04D13/076 主分类号 A47L5/36
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