Wood or metal slats {venetian blind}|, suspended from strings, can cover windows. Cord raises bottom slat and so pulls up other slats. Locking lever at top right-hand side holds raising cord, to keep blinds up. Left-side cord pulls strings up on one side and down on other side, to change slat angle.
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7-Machine-Kinds-Mechanical-Window
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Date Modified: 2022.0224