| 摘要 |
A louver for controlling light or ventilation through a window in a building. The louver includes: an elongate rectangular panel; an elongate, longitudinally-extending support bar; and laterally-extending brackets spaced along the support bar and holding opposite lateral edges of the panel above the support bar. The brackets are held on the support bar by a pair of upper and lower key way formations on opposite lateral sides of the louver. The upper key way formation is a mating ball and socket arrangement and the lower key way formation is a snap-fit arrangement.
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