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United States Utility Patents
4,117,680 - 4,117,689
Previous 10 Next 10
| Number | | Title |
|
4,117,680 |
|
Continuous loop shape memory effect heat engine |
|
4,117,681 |
|
Tandem master cylinder with integral proportioning valve |
|
4,117,682 |
|
Solar collector system |
|
4,117,683 |
|
System and method for cooling hot water from industrial plant cooling use |
|
4,117,684 |
|
Underground storage |
|
4,117,685 |
|
Method and means for irrigating soil and growing plants having varying water requirements |
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4,117,686 |
|
Fabric structures for earth retaining walls |
|
4,117,687 |
|
Mine roof supports |
|
4,117,688 |
|
Apparatus for working under water |
|
4,117,689 |
|
Submarine pipe trenching apparatus |
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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