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PL349677A1
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High-pressure type heating coil
|
|
PL340570A1
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Apparatus for shutting off a pyrite storage bin from its associated crushing mill hot air chamber
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PL316887A1
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Method of renewing boiler drums
|
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PL313829A1
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Recuperative rotary heat exchanger
|
|
PL312262A1
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Method of making a double-walled pipe
|
|
PL310098A1
|
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Method of removing gaseous pollutants from flue gases
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PL307429A1
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Method and apparatus for making profiled metal sheets
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PL304459A1
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Method of combusting solid fuels with reduced emission of nitrogen oxides and burner therefor
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PL304044A1
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Method of machining rots of welds and miling machine therefor
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PL299894A1
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Hydrostatic clutch
|
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PL286472A1
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Sliding conical plate collar of non-step transmissions
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