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4-000858 | Jan 1992 | JPX |
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3108447 | Maher et al. | Oct 1963 | |
3538714 | Kling et al. | Nov 1970 | |
3705498 | DeHaan | Dec 1972 | |
4277949 | Longsworth | Jul 1981 | |
4543794 | Matsutani et al. | Oct 1985 | |
4790147 | Kuriyama et al. | Dec 1988 |
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