发明名称 Process for positioning various poles and the like and device for embodying the same
摘要 A pin is engaged in a tubular sleeve and both the sleeve and the pin are driven into the ground with the pin protruding beneath the sleeve. A stop is applied on top of the sleeve and the pin is removed and a pole is then inserted into the sleeve.
申请公布号 US3894589(A) 申请公布日期 1975.07.15
申请号 US19730320743 申请日期 1973.01.03
申请人 CIRAUD, LEONE ISAURE MARIE 发明人 CIRAUD, PIERRE ALFRED LEON
分类号 A01G17/16;E04H12/22;E04H12/34;(IPC1-7):E21B11/02 主分类号 A01G17/16
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