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Home › Combination apparatus made of sacrificial anode material removably affixed to a shaft of a propeller of an engine of a water craft, the apparatus including removable and replaceable cutting blades

Combination apparatus made of sacrificial anode material removably affixed to a shaft of a propeller of an engine of a water craft, the apparatus including removable and replaceable cutting blades

US Patent 9988132 · Granted Jun 5, 2018

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