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1988-03-01
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1984-12-25
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1983-02-21
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1971-11-09
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1978-01-10
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1983-07-26
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1982-08-17
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1990-08-21
Charging arrangement for shaft furnaces, in particular blast furnaces
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1964-03-10
cooper
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1980-12-30
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1979-03-13
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1982-06-30
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1977-05-31
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1992-02-06
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1979-04-24
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1969-02-25
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1965-11-30
Apparatus for charging shaft furnaces
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1983-10-23
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1977-09-27
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1983-04-23
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1975-10-05
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1981-04-13
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1983-03-07
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1959-08-04
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1981-07-30
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