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| 005 | 20260205040513.0 | ||
| 008 | 260111s9999||||xx |||||||||||||| ||und|| | ||
| 082 | _a608 C886D | ||
| 100 | _aCROWTHER J G | ||
| 245 | 0 | _aDISCOVERIES AND INVENTIONS OF THE 20TH CENTURY | |
| 260 |
_aLOND. _bKEGAN PAUL _c1955 |
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| 300 | _a432 | ||
| 690 | _aINVENTIONS;20TH;CENTURY | ||
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_c7050 _d7050 |
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