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Priority to AU5855/06ApriorityCriticalpatent/AU585506A/en
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Publication of AU585506ApublicationCriticalpatent/AU585506A/en
Assigned to NEXSTAR PHARMACEUTICALS, INC.reassignmentNEXSTAR PHARMACEUTICALS, INC.Assignment by Patentee under S 187, Reg 19.1Assignors: VESTAR, INC.
Improvements in methods of, and apparatus for, increasing the volume of sounds from telephonic or phonographic instruments, and transmitting such sounds to distances