4. Geometrical instruments
  5. Gauge
  6. Screw thread

James R. Douglas

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Indicating thread gage

Geometrical instruments – Gauge – Screw thread
Patent

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Method for producing a family of forged ring rolling preforms an

Metal deforming – By use of closed-die and coacting work-forcer – Forcing work into or within closed die; e.g. – forging
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Method for producing near net ring gear forgings

Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent

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Profile ID: LFUS-PAI-P-3428

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