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United States Utility Patents
4,233,950 - 4,233,959
Previous 10 Next 10
| Number | | Title |
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4,233,950 |
|
Safety interlock for an engine ignition system |
|
4,233,951 |
|
Ignition circuit for internal combustion engines |
|
4,233,952 |
|
Hand catapult device |
|
4,233,953 |
|
Propulsion device for tennis balls and like spherical objects having an improved programmed discharge of the oscillatory type |
|
4,233,954 |
|
Concrete pile cutting device |
|
4,233,955 |
|
Fireplace and room heater |
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4,233,956 |
|
Fireplace system |
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4,233,957 |
|
Solar energy collector |
|
4,233,958 |
|
Climate-controlled building construction |
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4,233,959 |
|
Storage of thermal energy |
For U.S. patent law, rules, and procedures see MPEP.
Disclaimer. Information presented on this page while believed to be reliable, is provided "as is" with no warranties of its accuracy or timeliness. For legal advice seek help of a licensed professional.
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