4. Internal-combustion engines
  5. Combined devices

Tsutomu Hatsugai

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Air supply apparatus for a fuel cell

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate

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Engine generator

Internal-combustion engines – Combined devices
Patent

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Engine generator unit

Prime-mover dynamo plants – Miscellaneous – Drive gearing
Reexamination Certificate

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Fuel cell stack

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate

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Multi-blade fan for air-cooled engine

Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Radially extending web or end plate
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1737160

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