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Title: Model of 5 ton Electric Derrick Crane with 100' 0" Jib, 2 mo [Go to resource]
Description: Model of 5 ton Electric Derrick Crane with 100' 0" Jib, 2 motor Type License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1989-589 Go to resource More Like this...
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