4. Marine propulsion
  5. Screw propeller
  6. Variable pitch

Noboru Tohge

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Color filters and methods of manufacturing the same

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified
Patent

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Double reverse revolution propeller apparatus

Marine propulsion – Screw propeller – Variable pitch
Patent

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Method of manufacturing a diffraction grating

Coating processes – Direct application of electrical – magnetic – wave – or... – Pretreatment of substrate or post-treatment of coated substrate
Reexamination Certificate

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Substrate with fine grooves and method for manufacturing the sam

Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier
Patent

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Profile ID: LFUS-PAI-P-189805

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