4. Fluent material handling, with receiver or receiver coacting mea
  5. Filling means with receiver or receiver coacting means
  6. Drip prevention

Leroy W. Janson

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Grout injecting apparatus

Fluent material handling – with receiver or receiver coacting mea – Filling means with receiver or receiver coacting means – Drip prevention
Patent

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Lock device for hollow stem augers

Boring or penetrating the earth – With tool shaft detail – Helix or helically arranged structure
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Profile ID: LFUS-PAI-P-209901

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