4. Ammunition and explosives
  5. Blasting
  6. Detonation wave modifying

Tony F. Grattan

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Circular shaped charge

Ammunition and explosives – Blasting – Detonation wave modifying
Reexamination Certificate

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Pipe conveyed explosive with self contained actuation

Boring or penetrating the earth – Boring with explosion in inaccessible hole – Concave-shaped charge
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2703694

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