| 摘要 |
PCT No. PCT/EP92/01116 Sec. 371 Date Jan. 22, 1993 Sec. 102(e) Date Jan. 22, 1993 PCT Filed May 20, 1992 PCT Pub. No. WO92/21535 PCT Pub. Date Dec. 10, 1992.The invention relates to a wiper and washing system including a tube with two separate channels, a nozzle head with at least two washing nozzles, one of which is connected to the one channel and the other of which is connected to the other channel of the tube, and a connecting piece from which the tube starts off. In order to avoid wrong assemblies, coding the connections between the tube and the nozzle head as well as between the tube and the connecting piece are provided on the tube on the one hand, and on the nozzle head or on the connecting piece on the other hand.
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