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Heikki Hellemaa
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Abo, FI
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last 30 patents
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Patent Grant
Braking diesel engines
Patent number
4,393,832
Issue date
Jul 19, 1983
Nordstjernan AB
Olof Samuel
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Patent Grant
Compressed air starter
Patent number
4,324,212
Issue date
Apr 13, 1982
Rederiaktiebolaget Nordstjernan
Olof Samuel
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS