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LL/118380
Louis Jules Duboscq
1852, 16 February
Patent illustration (Brevet d'Invention 13069)

Patent illustration
French Patent and Trademark Office (INPI)
(Alan Griffiths, 14 February 2022) I'm indebted to Joris Nouwens for bringing this to my attention. (Alan Griffiths, 14 February 2022) I'm indebted to Joris Nouwens for bringing this to my attention.
 
LL/118380


 
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