From my reference books:
Claudin: Parisian Gunmaking family: Sebastien-Ferdinand, Desire-Henri, Ferdinand (son).
At the Paris exhibit in 1839 (Bronze medal), 1844 (ditto), 1849 (ditto), 1855 (1st class medal), 1867 (silver medal), 1878 (Gold medal)& London 1851 (Prize medal) & 1862.
Numerous Patents from 1850 to 1878.
Located 9, rue de la Tonnellerie in 18389, 1, rue Joquelet from 1844-1860, and 38 bld des italiens from 1861-1878.
Seems to have exited the business in 1890.

Best regards,
WC-