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United States Utility Patents
4,975,560 - 4,975,569
Previous 10 Next 10
| Number | | Title |
|
4,975,560 |
|
Apparatus for powering the corrosion protection system in an electric water heater |
|
4,975,561 |
|
Heating system for substrates |
|
4,975,562 |
|
Heater and thermostat unit |
|
4,975,563 |
|
Heating devices |
|
4,975,564 |
|
Odometer |
|
4,975,565 |
|
Automatic adjusting device for a sighting system |
|
4,975,566 |
|
First stage circuit for an optical receiver |
|
4,975,567 |
|
Multiband photoconductive detector based on layered semiconductor quantum wells |
|
4,975,568 |
|
Container inspecting apparatus with a light shielding member shaped to container profile |
|
4,975,569 |
|
Optical rotary encoder employing plural photosensors disposed in a specific arrangement |
For U.S. patent law, rules, and procedures see MPEP.
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