Allport; Davies
Patent Applications and Registrations
Patent applications and USPTO patent grants for Allport; Davies.The latest application filed is for "method and apparatus for forming ports in drip irrigation hose".
- Allport; Davies - La Jolla CA
- Allport; Davies - San Diego CA
| Patent | Date |
|---|---|
| Method and apparatus for forming ports in drip irrigation hose Grant 5,123,984 - Allport , et al. June 23, 1 | 1992-06-23 |
| Drip irrigation hose Grant 4,984,739 - Allport January 15, 1 | 1991-01-15 |
| Irrigation hose and method for its construction Grant 4,247,051 - Allport January 27, 1 | 1981-01-27 |
| Irrigation Fitting Grant 3,777,980 - Allport December 11, 1 | 1973-12-11 |
| Irrigation Device Grant 3,777,987 - Allport December 11, 1 | 1973-12-11 |
| Traveling Cylinder Imprinter With Over Center Platen Cylinder Activating Mechanism Grant 3,650,209 - Allport March 21, 1 | 1972-03-21 |
| Credit Card Imprinter With Comparison And Checking Means Grant 3,602,139 - Allport August 31, 1 | 1971-08-31 |
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