Number | Date | Country | Kind |
---|---|---|---|
57-222592 | Dec 1982 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2041741 | Bichowsky | May 1936 | |
3478530 | Aronson | Nov 1969 | |
4019992 | Krueger | Apr 1977 |
Entry |
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Hainsworth, W. R. "Refrigerants & Absorbents" Refrigerating Engineering, vol. 48, Sep. 1944, (No. 2), pp. 204-205. |