Inexpensive method for reproducing X-ray
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Article
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1960
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Elsevier Science
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English
β 148 KB
Aug., 196o.] CURRENT TOPICS I59 engine. Equipped with a 30-ft. strut boom or a 30-ft. gooseneck boom, and three 20-ft. insert sections, it is full revolving. Additional counterweights are provided for operation with a 90ft. boom. Using the 30-ft. boom and outriggers, the unit can lift 10 tons at a 2