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Patent applications and USPTO patent grants for Clifford; Earl W..The latest application filed is for "vacuum package tester and method".
Patent | Date |
---|---|
Vacuum package tester and method Grant 4,478,070 - Clifford , et al. October 23, 1 | 1984-10-23 |
Method and apparatus for measuring the permeability of a material Grant 4,385,517 - Sorce , et al. May 31, 1 | 1983-05-31 |
Roller members for use in heat sealing apparatus Grant 4,128,451 - Sorce , et al. December 5, 1 | 1978-12-05 |
Control valves for tracheotomy patient or laryngeal prosthesis Grant 4,040,428 - Clifford August 9, 1 | 1977-08-09 |
Laryngeal prosthesis Grant 3,952,335 - Sorce , et al. April 27, 1 | 1976-04-27 |
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