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2-210255 | Aug 1990 | JPX |
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3806866 | Reboul | Apr 1974 | |
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4600271 | Boyer et al. | Jul 1986 | |
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0303742 | Feb 1989 | EPX |
4125070 | Feb 1992 | DEX |
2249855 | Aug 1981 | GBX |
Entry |
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Office Action, German Patent Office, Appln. No. P 41 23 905.9-21 (English language translation). |