4. Electric heating
  5. Metal heating
  6. By arc

Dale U. Chang

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Apparatus and method for laser welding the outer joints of metal

Electric heating – Metal heating – By arc
Patent

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Apparatus and method of laser welding inside bellows joints and

Electric heating – Metal heating – By arc
Patent

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Apparatus and method of laser welding inside bellows joints...

Electric heating – Metal heating – By arc
Reexamination Certificate

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Golf ball with reduced spin

Games using tangible projectile – Golf – Ball
Reexamination Certificate

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Golf club for minimizing spin of golf ball

Games using tangible projectile – Golf – Club or club support
Reexamination Certificate

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Profile ID: LFUS-PAI-P-858687

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