发明名称 Portable adjustable roof platform
摘要 A portable adjustable roof platform for use with a roof ladder so as not to damage a sloped roof surface. The roof platform may be quickly engaged with the roof ladder and adjusted to the horizontal position without handling small locating or fastening parts. The roof platform folds into a compact closed configuration for ease of transportation.
申请公布号 US4450935(A) 申请公布日期 1984.05.29
申请号 US19820453533 申请日期 1982.12.27
申请人 GUSTAVUS, DAVID C. 发明人 GUSTAVUS, DAVID C.
分类号 E04G3/26;E06C7/16;(IPC1-7):E04G3/12 主分类号 E04G3/26
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