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United States Utility Patents
4,449,800 - 4,449,809
Previous 10 Next 10
| Number | | Title |
|
4,449,800 |
|
Portable overhead projector |
|
4,449,801 |
|
Method and projecting typositor for composing typographical artwork on color sensitive photographic medium |
|
4,449,802 |
|
Adapter device |
|
4,449,803 |
|
Indicating apparatus for electronic flash system of TTL light measurement type |
|
4,449,804 |
|
Interval timer device |
|
4,449,805 |
|
Data registration device |
|
4,449,806 |
|
Film advance mechanism for disc camera |
|
4,449,807 |
|
Automatic system and interchangeable optical instrument therefor |
|
4,449,808 |
|
Electrostatic detack apparatus and method |
|
4,449,809 |
|
Drive unit mounting mechanism for reproducing apparatus |
For U.S. patent law, rules, and procedures see MPEP.
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