(84) |
Designated Contracting States: |
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AT BE CH DE FR GB IT LI LU NL SE |
(30) |
Priority: |
30.03.1988 US 19880176107 05.10.1988 US 19880253807 21.02.1989 US 19890312763
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(71) |
Applicant: ARCH DEVELOPMENT CORPORATION |
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Chicago, IL 60637 (US) |
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(72) |
Inventors: |
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- LIAO, Shutsung
Chicago, IL 60637 (US)
- CHANG, Chawnshang
Chicago, IL 60637 (US)
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(74) |
Representative: Dr. Fuchs, Dr. Luderschmidt Dr. Mehler, Dipl.-Ing. Weiss Patentanwälte |
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Postfach 46 60 D-65036 Wiesbaden D-65036 Wiesbaden (DE) |
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