Number | Date | Country | Kind |
---|---|---|---|
4110484 | Mar 1991 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4879324 | Lausberg | Nov 1989 |
Number | Date | Country |
---|---|---|
0330015 | Aug 1989 | EPX |
075057 | Apr 1988 | JPX |
311164 | Dec 1989 | JPX |
024153 | Feb 1991 | JPX |
8802387 | Apr 1988 | WOX |
9002775 | Mar 1990 | WOX |
Entry |
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WPI, AN=78-90332A(50), Derwent Publications Ltd. |
Patent Abstracts of Japan, Band 13, Nr. 151 (C-584) (3499), Apr. 12, 1989. |