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United States Utility Patents
4,177,770 - 4,177,779
Previous 10 Next 10
| Number | | Title |
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4,177,770 |
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Compensation of sensor voltage for reference potential variation |
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4,177,771 |
|
Rotary engines with free reciprocating-rotating pistons and jet thrust drive |
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4,177,772 |
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Method of operating a four-stroke internal combustion engine and internal combustion engine for carrying out this method |
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4,177,773 |
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Damped automatic variable valve timing device for internal combustion engines |
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4,177,774 |
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Control valves |
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4,177,775 |
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Fuel injection pump |
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4,177,776 |
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Ignition system for internal combustion engines |
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4,177,777 |
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Exhaust gas recirculation control system |
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4,177,778 |
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Carburetors with heating device |
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4,177,779 |
|
Fuel economy system for an internal combustion engine |
For U.S. patent law, rules, and procedures see MPEP.
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