Number | Date | Country | Kind |
---|---|---|---|
89 07820 | Jun 1989 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
3328680 | Singer | Jun 1967 | |
4509023 | Heimlicher | Apr 1985 | |
4731578 | Tsaprazis | Mar 1988 | |
4797614 | Nelson | Jan 1989 | |
4954776 | Husher | Sep 1990 | |
4956606 | Kwiatkowski et al. | Sep 1990 |
Number | Date | Country |
---|---|---|
3322701A1 | Jan 1985 | DEX |
3513403A1 | Oct 1986 | DEX |
Entry |
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PATENT ABSTRACTS OF JAPAN, vol. 11, No. 223, (containing Japanese Patent Application No. 63-38382 (A), 1987) (No full English translation). |