4. C - Chemistry, Metallurgy
  5. 21
  6. D

Irvin P. Bielefeldt

C - Chemistry – Metallurgy – 21 – D

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Heating apparatus with removable heating elements and heat...

F - Mech Eng,Light,Heat,Weapons – 27 – D
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Heating apparatus with workpiece carriers

C - Chemistry – Metallurgy – 21 – D
Patent

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Profile ID: LFCA-PAI-P-129529

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