发明名称 Underwater trenching & pipelaying apparatus
摘要 The apparatus will include a support sled portion having a pair of spaced apart elongated pontoon sections. The pontoons are interconnected by a plurality of I-beam spacer members. A cutter apparatus, including an endless cutter chain projecting into the soil is mounted to the underside of the I-beam spacer members.
申请公布号 US4470720(A) 申请公布日期 1984.09.11
申请号 US19810306285 申请日期 1981.09.28
申请人 LENNARD, EDDIE 发明人 LENNARD, EDDIE
分类号 E02F5/10;(IPC1-7):F16L1/04;E02F3/88 主分类号 E02F5/10
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