发明名称 Aquatic weed barrier
摘要 An aquatic weed barrier is disclosed which comprises a film having a plurality of incisions therein. Each incision is shaped to form at least one flap adjacent the incision. The film has a light transmittance of less than 50% in the 200 to 650 nm wavelength range.
申请公布号 US4518280(A) 申请公布日期 1985.05.21
申请号 US19840603907 申请日期 1984.04.25
申请人 DU PONT CANADA INC. 发明人 FLETCHER, ELDON L.
分类号 E02B3/12;(IPC1-7):E02B3/00 主分类号 E02B3/12
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