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| PROTON TECHNOLOGY DEVELOPMENT CORPORATIONMiami, FL · Inactive | Miami, FL | Corporation | Apr 25, 1997 | Inactive |
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| ROBOTIC RADIATION SYSTEMS, LLCMiami, FL · Inactive | Miami, FL | LLC | Aug 13, 2003 | Inactive |
| CYBERKNIFE CENTER OF PALM BEACH LLCMiami, FL · Inactive | Miami, FL | LLC | Sep 16, 2003 | Inactive |
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| GROVE PACIFIC COMPANY, INC.Miami, FL · Inactive | Miami, FL | Corporation | Apr 19, 1994 | Inactive |
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| OUTSOURCE PHYSICIAN SERVICES, INC.Coral Gables, FL · Inactive | Coral Gables, FL | Corporation | Feb 13, 1997 | Inactive |
| JAMES G. SCHWADE, M.D., AND ASSOCIATES, INC.Miami, FL · Inactive | Miami, FL | Corporation | Mar 27, 1997 | Inactive |
| OLD RT21, INC.Miami, FL · Inactive | Miami, FL | Corporation | Aug 18, 1997 | Inactive |