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Patent (452485) 452485
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springs (452941) 452941
mechanical engineering (452577) 452577
heating (452511) 452511
shock-absorbers (452508) 452508
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blasting (452486) 452486
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general measures for producing and maintaining effectivefunctioning of machines or installations (452485) 452485
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land vehicles for travelling otherwise than on rails (24646) 24646
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arrangement or mounting of plural diverse prime-movers invehicles (23526) 23526
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metal-working not otherwise provided for (6899) 6899
mechanical metal-working without essentially removingmaterial (6867) 6867
punching metal (6867) 6867
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