Inventor · disambiguated record

Ugo Callegari

Also filed as: CALLEGARI UGO

2 granted patents·63 citations·filing 1988–1991

65Inventor score

Technology areasB61L

Files withSASIB SPA2

Top patents by PatentIndex Score

2 records

0174US5292091AOperating device for railway switches, particularly for high-speed linesSASIB SPA·Filed 1991·Granted Mar 8, 1994·40 cites·22 claims
0260US4921189AUniversal outer point lock device for railway pointSASIB SPA·Filed 1988·Granted May 1, 1990·23 cites·6 claims

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