Number | Name | Date | Kind |
---|---|---|---|
498585 | Still | May 1993 | |
1223375 | Elliott | Apr 1917 | |
1232676 | Fisher | Jul 1917 | |
1857209 | Moore | May 1932 | |
2446296 | Movitz | Aug 1948 | |
2488223 | Moos | Nov 1949 | |
3109946 | Pontin | Nov 1963 | |
3445692 | Kato | May 1969 | |
3678310 | Munn et al. | Jul 1972 | |
4314169 | Rusu | Feb 1982 |
Entry |
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How to Make and Use Electric Motors: Al g. Renner; 1974; Toronto, Canada. |
American Science and Surplus Catalog; p. 28; Published Sep./Oct. 1995; Skokie, IL 60076. |
The World's Simplest Motor Instructions; copyright 1994; Yeany Educational Products; Palmyra PA 17078. |