Number | Date | Country | Kind |
---|---|---|---|
2-16664 | Jan 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4112013 | Briggs et al. | Sep 1978 | |
4273894 | Mucke | Jun 1981 |
Entry |
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Abstract (ACS) of published JP patent No. 18434 (1987). |
Abstract (ACS) of published JP patent No. 95369 (1987). |
Abstract (ACS) of published JP patent No. 95372 (1987). |