Graham II; James R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Graham II; James R..The latest application filed is for "reverse buckling disk with incorporated knife".
- Graham II; James R. - Tulsa OK
| Patent | Date |
|---|---|
| Reverse buckling disk with incorporated knife Grant 5,720,380 - Graham II February 24, 1 | 1998-02-24 |
| Differential pressure flow sensor using multiple layers of flexible membranes Grant 5,661,277 - Graham, II August 26, 1 | 1997-08-26 |
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