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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0993369 (1992-12-18) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 18 인용 특허 : 6 |
A marker stake includes a ribbed spike having converging ribs directed towards a lowermost end for barring rotation of the spike, with the spike arranged for mounting an indicator shaft. The indicator shaft is arranged for removable mounting relative to the spike member, with a step plate arranged f
A location marker stake, comprising, a spike member, the spike member having a plurality of longitudinal ribs, and an abutment collar, the ribs extending from the abutment collar and canted towards one another terminating in a pointed distal end, the abutment collar further including a first side, w
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