4. Metal working
  5. Method of mechanical manufacture
  6. Prime mover or fluid pump making

Hans Zechmann

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Friction-welded shaft-disc assembly and method for the...

Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Reexamination Certificate

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Process for producing cup tappets for reciprocating-piston machi

Metal working – Method of mechanical manufacture – Prime mover or fluid pump making
Patent

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Welded crankshaft

Machine element or mechanism – Elements – Cranks and wrist pins
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1259955

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