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Jaakko Hakala
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Korpilahti, FI
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last 30 patents
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Patent Grant
Method for making the foundation slabs of a paper machine before th...
Patent number
5,210,991
Issue date
May 18, 1993
Valmet Paper Machinery Inc.
Jaakko Hakala
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Method and apparatus for drilling of holes into the mantle of a cyl...
Patent number
5,090,846
Issue date
Feb 25, 1992
Valmet Paper Machinery Inc.
Jaakko Hakala
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR