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FLUID OPERATED RETRACTORS

08/54,416 | U.S. Patent Application

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Location FORMER GROUP 3300
Filed April 28, 1993
Examiner MICHAEL H THALER
Class 128
Art Group 3309
Case Type Utility - 128/898000
Status Application Undergoing Preexam Processing
Parent 07/487,645 Patented
Child 08/216,097 Abandoned
Child 08/195,337 Patented
Child 08/419,851 Abandoned
Child 08/462,420 Patented
Child 08/464,143 Patented
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Last Updated: 5 years ago
Date # Transaction