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PATUREL ET CIE J
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PATUREL ET CIE J
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Perfectionnements apportés aux enveloppes d'aérostats, et en particulier aux carènes de ballons captifs, de dirigeables souples et de dirigeables semi-rigides
Perfectionnements apportés aux enveloppes d'aérostats, et en particulier aux carènes de ballons captifs, de dirigeables souples et de dirigeables semi-rigides