Category:Gin poles
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supported pole which uses a pulley or block and tackle on its upper end to lift loads | |||||
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Media in category "Gin poles"
The following 4 files are in this category, out of 4 total.
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Gin pole and steam winch 5-3-1912.jpg 2,788 × 4,096; 1.96 MB
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Gin pole derrick.gif 558 × 472; 5 KB
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Netherlands. (Workmen working on the framing of a building.) - NARA - 541708.tif 1,864 × 2,000; 3.58 MB
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Weather-vane-install-boat.jpg 998 × 355; 169 KB
