4. F - Mech Eng,Light,Heat,Weapons
  5. 28
  6. D

William B. Jr. Astle

F - Mech Eng,Light,Heat,Weapons – 28 – D

Inventor

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Inventor

Country: United States Of America

Efficient gas hot-air furnace and heating process

F - Mech Eng,Light,Heat,Weapons – 24 – H
Patent

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Reciprocating heat exchanger

F - Mech Eng,Light,Heat,Weapons – 28 – D
Patent

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Efficient gas hot-air furnace and heating process

F - Mech Eng,Light,Heat,Weapons – 24 – H
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Reciprocating heat exchanger

F - Mech Eng,Light,Heat,Weapons – 28 – D
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

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Profile ID: LFCA-PAI-P-1175315

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