Number | Date | Country | Kind |
---|---|---|---|
52-118070 | Sep 1977 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2283437 | Hentrich et al. | May 1942 | |
2576078 | Pelton | Nov 1951 | |
2985635 | Wassermann | May 1961 | |
3962147 | Maurer et al. | Jun 1976 | |
3984354 | Schleppnik | Oct 1976 |
Entry |
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Lamant et al, "Comptes, rend.," vol. 250, 362-364 (1960). |
Dauber et al, "J.A.C.S.," vol. 97, No. 6, 1622-1623 (1975). |
Blakely et al, "Nature" vol. 187, 662 (1960). |