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Priority claimed from US07/161,585external-prioritypatent/US4871301A/en
Application filed by Ingersoll Dresser Pump CofiledCriticalIngersoll Dresser Pump Co
Priority to SG128493ApriorityCriticalpatent/SG128493G/en
Publication of SG128493GpublicationCriticalpatent/SG128493G/en