Number | Name | Date | Kind |
---|---|---|---|
2525469 | Anderson | Oct 1950 | |
2975488 | Brauner | Mar 1961 | |
3041229 | Moisson | Jun 1962 | |
3635483 | Barriball et al. | Jan 1972 | |
3666589 | Alderfer | May 1972 | |
3690658 | Howe | Sep 1972 | |
3703571 | Roberts | Nov 1972 | |
3709754 | Medler | Jan 1973 | |
3755037 | Erwin et al. | Aug 1973 | |
3821135 | King | Jun 1974 | |
3830894 | Juenger et al. | Aug 1974 | |
3889951 | Schaefer et al. | Jun 1975 | |
3949988 | Staufer | Apr 1976 | |
3971669 | Wrzesien et al. | Jul 1976 |
Number | Date | Country |
---|---|---|
241,018 | Feb 1960 | AUX |
2,126,488 | Oct 1972 | FRX |
1,293,398 | Oct 1972 | GBX |
1,312,731 | Apr 1973 | GBX |
Entry |
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The Sporting Goods Dealer Product Reviews "Racket Combines Graphite, Plastic", May, 1974, p. 126. |
Time, "Those Super Racquets", Dec. 27, 1976, pp. 49-50. |
Moiseyev, A. A.; V. V. Pavlov and M. Ya Borodin, Editors, "Expanded Plastics; a Collection of Papers", New York, Macmillan Co., 1963, pp. 85-94, 101-108 (A Pergamon Press Book). |