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- Inventors
- Boring or penetrating the earth
- Tool removable or insertable through or around driving or...
- Laterally shiftable cutter element movable through shaft
Details
Edward F. Grafe
Edward F.
Grafe
- Patent Class
Boring or penetrating the earth
- SubClass
Tool removable or insertable through or around driving or...
- SubSubClass
Laterally shiftable cutter element movable through shaft
- Specialty
Inventor
- Status
active
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Profile ID: LFUS-PAI-P-1895889
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