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United States Utility Patents
4,019,520 - 4,019,529
Previous 10 Next 10
| Number | | Title |
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4,019,520 |
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Tobacco substitute containing boric oxide, boron oxyacids, and ammonium, alkali metal, or alkaline earth metal salts of boron oxyacids |
|
4,019,521 |
|
Smokable material and method for preparing same |
|
4,019,522 |
|
Dental hygiene package |
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4,019,523 |
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Method and apparatus for mixing gases |
|
4,019,524 |
|
Use of equalization chamber in discontinuous venting of vessel |
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4,019,525 |
|
Tractor protection valve |
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4,019,526 |
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Device for shutting off damaged sections in pneumatic multi-section braking systems for vehicles |
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4,019,527 |
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Modulating flow control valve |
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4,019,528 |
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Fluid mixing apparatus |
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4,019,529 |
|
Valve with roller |
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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