Excavating – Peat excavators
Patent
1978-03-20
1980-02-12
Crowder, Clifford D.
Excavating
Peat excavators
37117, 37183R, E02F 344
Patent
active
041876253
ABSTRACT:
An underwater excavation system comprises an excavating implement suspended from a surface support by a carrying line and means for moving the implement horizontally between an excavation site and a spoil dumping site comprising a guide line cooperating with the carrying line and extending from the surface support to a mooring on the sea bed.
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patent: 2864182 (1958-12-01), Russell
patent: 2933837 (1960-04-01), Nelson
patent: 2996819 (1961-08-01), Bowman et al.
patent: 3365823 (1968-01-01), Vogt
patent: 3763580 (1973-10-01), Kuntz, Jr.
patent: 3949496 (1976-04-01), DeKoning et al.
Compagnie Francaise des Petroles
Crowder Clifford D.
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