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170717s1972 sz a|||fr|||| 001 0 spa |
| 040 |
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|a Sistema de Bibliotecas de la Universidad de Panamá
|
| 082 |
|
4 |
|a 615.886
|b J87
|
| 100 |
1 |
|
|9 202315
|a Jucker, E.
|
| 245 |
1 |
0 |
|a Patentes :
|b ¿ Por qué ?
|c / E. Jucker
|
| 260 |
|
|
|a Basilea :
|b Buchdruckerei Gasser,
|c 1972.
|
| 300 |
|
|
|a 109 p. :
|b il. ;
|c 25 cm.
|
| 650 |
|
7 |
|9 136777
|a PATENTES
|
| 942 |
|
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|2 ddc
|c BK
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| 999 |
|
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|c 207301
|d 207299
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|9 351287
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|b 24
|c 17
|d 2017-07-17
|o 615.886 J87
|p 00110077
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|t e.1
|w 2017-07-17
|y BK
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| 952 |
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|1 0
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|c 17
|d 2022-05-30
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|o 615.886 J87
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|r 2022-05-30
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|y BK
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