Number | Date | Country | Kind |
---|---|---|---|
63-45753[U] | Apr 1988 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3393789 | Keiter | Jul 1968 |
Number | Date | Country |
---|---|---|
1441348 | Aug 1974 | GBX |
Entry |
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Mott, W. E., IBM Technical Disclosure-Platen Knob Securing Device, Mar. 1978, p. 3995. |
Mott, W. E., IBM Technical Disclosure-Platen Knob Securing Device, Feb. 1977, p. 3472. |