Gianpaolo Bonmassari

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Ivrea, IT

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Patents Grantslast 30 patents

Information Patent Grant
Feed arrangement for a typing and/or correction ribbon for typewrit...
- Patent number 5,169,248
- Issue date Dec 8, 1992
- Ing. C. Olivetti & C., S.p.A.
- Gillio Claudio
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Electronic typewriter
- Patent number 5,158,376
- Issue date Oct 27, 1992
- Ing. C. Olivetti & C., S.p.A.
- Crotti Alessandro
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Contact-type keyboard
- Patent number 5,034,573
- Issue date Jul 23, 1991
- Ing. C. Olivetti & C., S.p.A.
- Gianpaolo Bonmassari
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Correction device for typewriters
- Patent number 4,806,030
- Issue date Feb 21, 1989
- Ing. C. Olivetti & C., S.p.A.
- Giovanni Quaranti
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS