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Asphalt shingles - color blend drop sequence randomized by deposition means controlled by random signal generator to obviate stripes on roof
Asphalt shingles - color blend drop sequence randomized by deposition means controlled by random signal generator to obviate stripes on roof
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机译:沥青瓦-由沉积装置随机分配的颜色混合下降顺序,由随机信号发生器控制,以消除屋顶上的条纹
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摘要
Apparatus for depositing granules comprising feeders adapted to discharge responsive to a signal transmitter, the reception of the signal being interrupted by a moving tape, a plurality of such apparatus being employed to eliminate patterning on roofing shingles. A random signal generator may be used.
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