发明名称 Means for marking of points within the terrain
摘要 Means for marking points within the terrain include an anchoring element and a marking element secured thereto, said marking element being a horizontally disposed disc having a plurality of flap-like protrusions extending radially from the axis of said disc, the disc and protrusions having marking indicia thereon.
申请公布号 US4127972(A) 申请公布日期 1978.12.05
申请号 US19770769751 申请日期 1977.02.17
申请人 REIMOSER, FRITZ 发明人 REIMOSER, FRITZ
分类号 G01C15/04;(IPC1-7):E01F9/02;G01C15/02 主分类号 G01C15/04
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