Page 135 - Modular design for machine tools
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Engineering Guides and Future Perspectives of Modular  Design    95

























                                              (a)



































                                      (b)
               Figure 2-18    Head changer at first phase: (a) Head changer patented
               by Kerney & Trecker Co. and (b) head changer in mid-1970s
               (courtesy of Heller Maschinenfabrik).
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