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Production of existing Ruston-Bucyrus designed cable excavator/crane models from the 22RB to the 71RB continued at the Lincoln factory with ' Improved Crane Dragline ' versions also offered .
 Ruston-Bucyrus, Lincoln
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ruston-Bucyrus, Lincoln