Number | Date | Country | Kind |
---|---|---|---|
57-170369[U] | Nov 1982 | JPX | |
57-219985 | Dec 1982 | JPX | |
57-191624[U] | Dec 1982 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2227288 | Voorheis et al. | Dec 1940 | |
4321894 | Black | Mar 1982 | |
4373477 | Buente et al. | Feb 1983 |
Number | Date | Country |
---|---|---|
1914693 | Feb 1978 | DEX |
3006644 | Sep 1981 | DEX |
3023686 | Jan 1982 | DEX |
Entry |
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European patent application, Buente, Jun. 1981, FIG. 8. |