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Priority claimed from US07/089,598external-prioritypatent/US4797134A/en
Priority claimed from US07/182,299external-prioritypatent/US4857073A/en
Application filed by Wynn Oil CofiledCriticalWynn Oil Co
Application grantedgrantedCritical
Publication of ATE87967T1publicationCriticalpatent/ATE87967T1/de