Number | Date | Country | Kind |
---|---|---|---|
2000-251076 | Aug 2000 | JP |
Number | Name | Date | Kind |
---|---|---|---|
1332087 | Vogel | Feb 1920 | A |
2889054 | Wheeler | Jun 1959 | A |
3481485 | Hess | Dec 1969 | A |
3643607 | MacKenzie | Feb 1972 | A |
3927769 | Maslow et al. | Dec 1975 | A |
3986462 | Heft | Oct 1976 | A |
4476986 | Robinson | Oct 1984 | A |
Number | Date | Country |
---|---|---|
2600873 | Jan 1988 | FR |
2651981 | Mar 1991 | FR |
2276538 | Oct 1994 | GB |
9107120 | May 1991 | WO |
Entry |
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U.S. patent application Ser. No. 09/866,694, May 30, 2001, pending. |
U.S. patent application Ser. No. 09/878,342, Jun. 12, 2001, pending. |