4. Excavating
  5. Peat excavators

William E. Durell

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Automated dredging with vacuum assist

Excavating – Peat excavators
Patent

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Lens mounting system for use in lens relay systems

Optical: systems and elements – Lens – With support
Reexamination Certificate

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Optical positioner and connector

Optical: systems and elements – Lens – With support
Patent

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Variable ratio beam splitter

Patent

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Variable ratio beam splitter and beam launcher

Patent

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Profile ID: LFUS-PAI-P-164156

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