| http://www.w3.org/ns/prov#value | - Several commercial sources are available for booms of the aforementioned types except for the type which includes the collapsible envelope type skirt which serves as a storage area and has been described above inconjunction with FIG. 2.The booms 12 and 14 are connected at their respective ends opposite the ends connected to the towing vessels 16 to a floating weir type oil skimmer 24 which is conn
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