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| House 631/20 ... Ε-1 19, 20 Section Ε 21 Section Ε 22 ... 28 April 1931 ... Ε-1-19 (pp. 19-20) ... Ε-1-19 ... Ε.19 |
| ΝΝ-20 3827, 3828 ... ΝΝ-20 |
| ΞΞ-1 19, 20 ... 20 Feb 1939 ... ΞΞ-1-14 (pp. 19-20) ... ΞΞ.19 ... ΞΞ.20 |
| Κ-20 3928, 3929 Section Κ 465 Section Κ 466 Section Κ 467 ... February 1961 ... Κ-20-19 (pp. 3928-3929) ... Κ-20-19 |
| Well at 88/ΚΑ. Well ... ΝΝ-19 3627, 3628 B 20:1 ... 25 Jun 1946 ... ΝΝ-19 ... B 20:1 |
| ΝΝ-1 19, 20 XV-23 Section ΝΝ 2 ... 29 Sep 1938 ... 19, 20 |
| House 632 B/1. House 632 B/2. House 632 B/3. House 632 B/16. House 632 B/17. House 632 B/18 ... Ζ-1 19, 20 ... 17 Sep 1932 ... Ζ-1-14 (pp. 19-20) ... Ζ.19 ... Ζ.20 |
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