4. Geometrical instruments
  5. Straight-line light ray type
  6. Alignment device

David M Shaver

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Scrubber

Metal working – Method of mechanical manufacture – Assembling or joining
Reexamination Certificate

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Two wire circuit for a laser pendulum

Geometrical instruments – Straight-line light ray type – Alignment device
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2902965

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