4. Metal working
  5. Method of mechanical manufacture
  6. Gear making

Umberto Tomei

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Gas rotary screw compressor

Rotary expansible chamber devices – Interengaging rotating members – Helical or herringbone
Reexamination Certificate

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Method of chamfering and deburring gear teeth, device...

Metal working – Method of mechanical manufacture – Gear making
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2644842

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