Number | Date | Country | Kind |
---|---|---|---|
3522626 | Jun 1985 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3157524 | Artandi | Nov 1964 | |
4279812 | Cioca | Jul 1981 | |
4295894 | Cioca et al. | Oct 1981 | |
4412947 | Cioca | Nov 1983 |
Entry |
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Das Leder, 12th edition, No. 9, Sep. 1961, pp. 213-222+translation of pp. 213 and 214. |
Das Leder, 29th vol., No. 3, Mar. 1978, pp. 33-41 plus translation of pp. 36 and 40. |
Kollagen by Verlag Theodore Steinkopf, Dresden 1966, pp. 82, 119, 120 & 121, cover sheet and translation of relevant portions. |