This is a continuation of application Serial No. 749,886 filed December 13, 1976, now abandoned, a Reissue of U.S. Pat. 3,834,278. .Iaddend.
Number | Name | Date | Kind |
---|---|---|---|
2247140 | Twyman | Jun 1941 | |
2910971 | MacDuff | Nov 1959 | |
3119235 | Lewis | Jan 1964 | |
3376892 | Stacey | Aug 1968 | |
3452543 | Goff | Jul 1969 | |
3481147 | Goff | Dec 1969 | |
3568868 | Chichester | Mar 1971 | |
3713296 | Black | Jan 1973 | |
3722723 | Matthews | Mar 1973 |
Number | Date | Country |
---|---|---|
1270968 | Jun 1968 | DEX |
Entry |
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Gresen Model SPI-Spool Schematic, Gresen Mfg. Co., Minneapolis, Minn., 5/22/61. |
Number | Date | Country | |
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Parent | 749886 | Dec 1976 |
Number | Date | Country | |
---|---|---|---|
Parent | 315502 | Dec 1972 |