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1990-05-23
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1990-04-24
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1990-06-19
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1974-03-25
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1975-05-29
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1974-05-01
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1978-03-21
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1998-01-13
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1977-04-19
Spring winding machine with improved pitch mechanism
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1957-05-21
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1956-10-02
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1984-04-18
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1957-06-04
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1983-06-14
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1997-11-05
All-purpose cutting device for coil spring winding machine
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1974-03-30
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1938-06-07
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1985-06-04
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1985-10-02
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