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Air conditioning drain line system |
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2021-11-16 |
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Chemical delivery system for AC drain line |
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2021-01-19 |
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Air conditioning drain line trap |
— |
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Door handle and method for use |
— |
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Mounting apparatus and method for use |
— |
2019-05-14 |
| 5235206 |
Vertical bipolar transistor with recessed epitaxially grown intrinsic base region |
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1993-08-10 |
| 5137840 |
Vertical bipolar transistor with recessed epitaxially grown intrinsic base region |
Chang-Ming Hsieh, Louis L. Hsu |
1992-08-11 |
| 5043786 |
Lateral transistor and method of making same |
Chang-Ming Hsieh, Louis L. Hsu |
1991-08-27 |
| 4965217 |
Method of making a lateral transistor |
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1990-10-23 |
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Method of selective reactive ion etching of substrates |
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1989-05-02 |
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Plasma etching reactor with reduced plasma potential |
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1986-07-15 |
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Reactive ion etching chamber |
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1983-05-24 |
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Etch end point detector using gas flow changes |
Thomas Günther |
1982-12-07 |
