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United States Utility Patents
4,141,780 - 4,141,789
Previous 10 Next 10
| Number | | Title |
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4,141,780 |
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Optically monitoring the thickness of a depositing layer |
|
4,141,781 |
|
Method for rapid removal of cores made of .beta.Al.sub.2 O.sub.3 from directionally solidified eutectic and superalloy and superalloy materials |
|
4,141,782 |
|
Bump circuits on tape utilizing chemical milling |
|
4,141,783 |
|
Spray drying atomizer wheel |
|
4,141,784 |
|
Method and apparatus for controlling wood chip digester level |
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4,141,785 |
|
Process for recovery of chemicals from pulping waste liquor |
|
4,141,786 |
|
Manganic ion delignification of lignocellulosic material |
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4,141,787 |
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Process for preparing chemical cellulose according to the sulfite process by increasing the total SO.sub.2 content of cooking acid with liquid SO.sub.2 and digesting wood chips |
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4,141,788 |
|
Method of and means for forming multi-ply paper webs from a single headbox |
|
4,141,789 |
|
Headbox having pivoted bridging cover |
For U.S. patent law, rules, and procedures see MPEP.
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