4. Boring or penetrating the earth
  5. Cutter element laterally shiftable below ground
  6. Cutter element shifted by fluid pressure

Richard A. Kitchens

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Counterboring device for wells

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure
Patent

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Register with multiple controls

Ventilation – Having inlet airway – Including specific air distributor
Patent

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Window scraper

Brushing – scrubbing – and general cleaning – Machines – Scraping
Patent

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Profile ID: LFUS-PAI-P-606149

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