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1-38453 | Feb 1989 | JPX |
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2799668 | Anderson et al. | Jul 1957 | |
4020021 | Lahouste et al. | Apr 1977 | |
4496669 | Leach | Jan 1985 | |
4598102 | Leach | Jul 1986 | |
4689380 | Nahn | Aug 1987 | |
4748216 | Tom | Jun 1988 | |
4891387 | Janda | Jan 1990 |
Number | Date | Country |
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0156464 | Oct 1985 | EPX |
0348852 | Jan 1990 | EPX |
Entry |
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Patent Abstracts of Japan, vol. 10, No. 335 (C-384)(2391), Nov. 13, 1986; JP-A61 138 6744 (Hayakawa Rubber) Jun. 26, 1986. |
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