I have been preparing some things for le cirque and I have a question regarding another oddball part. I have a hub that is somwhat like a Cinelli Bivalent hub in that the freewheel remains attached to the frame when you remove the hub. On the hub it says Brevettato CM. Nothing more. I have tried to dig up the patent that this marking refers to but have come up blank. Is anybody perhaps a bit more adept at patent searches that can come up with something? It could perhaps have been patented only in Italy. Perhaps Cino 'borrowed' the idea for 'his' bivalent hubs?
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Steven Maasland
Moorestown, NJ