DISRAELI DOCUMENTS
A search of the online records of Instituto Nacional de la Propriedad Industrial I República Argentina, throws up two trademarks, for category 12 products (vehicles including bicycles), for the word 'Gambato'. These yield the following information:
So it appears that the Gambato brand was owned by Salvador Aguilaniedo and was active sometime in the period 1970 to 2003. It may also have been active before 1970, but the online records do not seem to go back that far.
As an aside, Salvador Aguilaniedo also registered the word 'Weinmann' as a trademark, applying in 1982.