LandOfFree - US Patents - Listing for Internal-combustion engines,Four-cycle,Rotating valve

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Rotary valve and valve seal assembly for rotary valve engine...

Internal-combustion engines – Four-cycle – Rotating valve

Reexamination Certificate

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Rotary valve assembly for an internal combustion engine

Internal-combustion engines – Four-cycle – Rotating valve

Patent

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Rotary valve assembly for an internal combustion engine

Internal-combustion engines – Four-cycle – Rotating valve

Patent

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Rotary valve engine

Internal-combustion engines – Four-cycle – Rotating valve

Patent

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Rotary valve engine

Internal-combustion engines – Four-cycle – Rotating valve

Patent

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Rotary valve for internal combustion engine

Internal-combustion engines – Four-cycle – Rotating valve

Patent

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Rotary valve head assembly and related drive system for internal

Internal-combustion engines – Four-cycle – Rotating valve

Patent

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Rotary valve head system for multi-cylinder internal...

Internal-combustion engines – Four-cycle – Rotating valve

Reexamination Certificate

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Rotary valve in an internal combustion engine

Internal-combustion engines – Four-cycle – Rotating valve

Reexamination Certificate

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Rotary valve internal combustion engine

Internal-combustion engines – Four-cycle – Rotating valve

Patent

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Rotary valve internal combustion engine

Internal-combustion engines – Four-cycle – Rotating valve

Patent

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Rotary valve internal combustion engine

Internal-combustion engines – Four-cycle – Rotating valve

Patent

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Rotary valve system

Internal-combustion engines – Four-cycle – Rotating valve

Patent

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Rotatable timed mechanism for feeding vaporous fluid to a combus

Internal-combustion engines – Four-cycle – Rotating valve

Patent

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Rotating exhaust valve

Internal-combustion engines – Four-cycle – Rotating valve

Patent

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