4. Excavating
  5. Snow or ice removing or grooming by portable device
  6. Railway clearer

Emil T. Leonard

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Vibratory plow assembly

Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent

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Vibratory plow blade

Earth working – With drive means for tool or cleaner – Vibrating tool
Patent

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Vibratory plow with blade having regressive longitudinal axis

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...
Patent

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Profile ID: LFUS-PAI-P-825985

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