Number | Date | Country | Kind |
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11-63588 | Mar 1999 | JP | |
11-80141 | Mar 1999 | JP |
This is a Divisional of application Ser. No. 09/522,852 filed Mar. 10, 2000, the disclosure of which is incorporated herein by reference.
Number | Name | Date | Kind |
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2202991 | Middleton | Jun 1940 | A |
3623882 | Gotze et al. | Nov 1971 | A |
6180332 | Yamashita et al. | Jan 2001 | B1 |
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