4. E - Fixed Constructions
  5. 21
  6. B

Robert E. Allison

E - Fixed Constructions – 21 – B

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Hole opener with improved rotary cutter mounting

E - Fixed Constructions – 21 – B
Patent

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Raise drill with replaceable stem and replaceable stem therefor

E - Fixed Constructions – 21 – B
Patent

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Replaceable drive stem for a raise drill

E - Fixed Constructions – 21 – B
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Profile ID: LFCA-PAI-P-740300

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