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Malmadie & Co. Maschinenfabrik GmbH
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Dusseldorf, DE
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Patent Grant
Punch change mechanism for a double pressure pin press
Patent number
4,203,336
Issue date
May 20, 1980
Malmadie & Co. Maschinenfabrik GmbH
Friedrich Boettger
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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