Number | Date | Country | Kind |
---|---|---|---|
60-50185[U] | Apr 1985 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
1899360 | Roudebush et al. | Feb 1933 | |
2760174 | Burtt et al. | Aug 1956 | |
3566336 | Johnson | Feb 1971 | |
4012097 | Long et al. | Mar 1977 | |
4017138 | Evans | Apr 1977 | |
4460230 | McKee et al. | Jul 1984 | |
4462654 | Aiello | Jul 1984 | |
4556270 | Schutzle et al. | Dec 1985 | |
4678256 | Nishino et al. | Jul 1987 |
Number | Date | Country |
---|---|---|
2352419 | Dec 1977 | FRX |
Entry |
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"Spring Retainer", Evans, IBM Technical Disclosure Bulletin, vol. 16, No. 12, 5/1974. |