The 1474 Venetian statute required notification of novel, workable devices and restricted imitation without the inventor's permission for a specified period. Consolidating these rules in a generally applicable enactment makes it an important document in the history of patent protection.
Historians note that Venice had already granted individual invention privileges before 1474. The statute did not invent patent protection from nothing; it largely codified existing practices and should not be treated as the instant birth of the entire modern patent system.
The historical text is documented in the Venetian State Archives' Senato Terra register and presented with a transcription and scholarly commentary in the Primary Sources on Copyright project. The record uses the date of the general statute, not an earlier one-off privilege.