4. Heat exchange
  5. With coated, roughened or polished surface

Ronald Lutz

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Heat-exchanger tube structured on both sides and a method...

Heat exchange – With coated – roughened or polished surface
Reexamination Certificate

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Method of manufacture of heat-exchanger tube structured on...

Metal working – Method of mechanical manufacture – Heat exchanger or boiler making
Reexamination Certificate

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Tube coupling for a peristaltic pump

Pumps – Expansible chamber type – Elongated flexible chamber wall progressively deformed
Reexamination Certificate

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Weight spacer apparatus

Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2513153

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