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

Clifford Anderson

E - Fixed Constructions – 21 – B

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Drilling string shock-absorbing tool

E - Fixed Constructions – 21 – B
Patent

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Drilling string shock-absorbing tool

C - Chemistry – Metallurgy – 10 – M
Patent

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Drilling string shock-absorbing tool

E - Fixed Constructions – 21 – B
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Oil well downhole pump

F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent

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Spline mechanism for drill tools

F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent

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Profile ID: LFCA-PAI-P-46401

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