4. F - Mech Eng,Light,Heat,Weapons
  5. 42
  6. B

David Crichton

F - Mech Eng,Light,Heat,Weapons – 42 – B

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A bath with interchangeable fitting

A - Human Necessities – 47 – K
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Apparatus and method for improving ski jump safety

G - Physics – 08 – B
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Riot-control apparatus

F - Mech Eng,Light,Heat,Weapons – 42 – B
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Apparatus and method for improving ski jump safety

G - Physics – 08 – B
Patent

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