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Business and Industry
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Helicopters
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Grant County Historical Society
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Joining top and lower sections of power line tower, Grant County, Minnesota
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Helicopter with tow cable, Grant County, Minnesota
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Helicopter hauling pulley for CPA/UPA power line construction, Grant County, Minnesota
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Helicopter flying around CPA/UPA power line tower, Grant County, Minnesota
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Helicopter flying around CPA/UPA power line tower, Grant County, Minnesota
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Crane helicopter with upper portion of power line tower, Grant County, Minnesota
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Crane helicopter with upper portion of power line tower, Grant County, Minnesota
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Crane helicopter with upper portion of power line tower, Grant County, Minnesota
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Crane helicopter with upper portion of power line tower approaching tower base, Grant County, Minnesota
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Crane helicopter lining up top portion of power line tower with tower base, Grant County, Minnesota
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Color photographs
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Current results range from
1976
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1978
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Electric Lines Poles and Towers
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Helicopters
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Overhead Electric Lines
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Contributor
Grant County Historical Society
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Rights Status
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