4. C - Chemistry, Metallurgy
  5. 22
  6. B

Hans Persson

C - Chemistry – Metallurgy – 22 – B

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Country: Canada

A device for interlocking two parts

F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent

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Process and apparatus for converting of solid high-grade...

C - Chemistry – Metallurgy – 22 – B
Patent

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Protection for railway vehicle axle

B - Operations – Transporting – 61 – F
Patent

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Profile ID: LFCA-PAI-P-1177261

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