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| (1) Lighting of towers, poles and similar obstructions. |
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| (2) Lighting of smokestacks and similar obstructions. |
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| (3) Lighting of water towers and similar obstructions. |
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| (4) Lighting of water towers and similar obstructions. |
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| (5) Lighting of bridges. |
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| (6) Painting of towers, poles and similar obstructions. |
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| (7) Painting of water towers and similar obstructions. |
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| (8) Painting of gas holders and similar obstructions. |
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| (9) Painting of water towers and similar obstructions. |
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| (10) Typical double obstruction light fitting. |
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| (11) Typical single obstruction light fitting. |
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| (12) Marking power lines, cables and similar obstructions. |