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1931-05-30
BE351090A
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FR2475706A1
(fr )
1981-08-14
Procede et dispositif pour la fusion des metaux, en particulier des metaux legers, lourds et precieux, ainsi que de leurs alliages
FR2513354A1
(fr )
1983-03-25
Dispositif de gazogene
BE437506A
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BE439487A
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1940-11-30
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BE645175A
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1964-07-01
BE559798A
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CH287508A
(fr )
1952-12-15
Procédé d'extraction des scories d'un dispositif à combustion sous pression et appareil pour la mise en oeuvre du procédé.
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BE491543A
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1949-10-31
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BE371421A
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CH184243A
(fr )
1936-05-31
Générateur de gaz mixte.
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