4. Metal working
  5. Means to assemble or disassemble
  6. Heat exchanger

Chao-Kun Tseng

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Folded fin forming method, machine and folded fin obtained...

Metal working – Means to assemble or disassemble – Heat exchanger
Reexamination Certificate

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Key button mechanism and an electronic device using the same

Electricity: circuit makers and breakers – Electric switch details – Cases and bases
Reexamination Certificate

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Method of making folded fin

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

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Profile ID: LFUS-PAI-P-2081169

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