Friedrich Perrot

Person

Lengnau, CH

People

Patents Grantslast 30 patents

Information Patent Grant
Timepiece including fixation device for an element added to a frame
- Patent number 6,092,923
- Issue date Jul 25, 2000
- Eta Sa Fabriques d'Ebauches
- Friedrich Perrot
- G04 - HOROLOGY
Information Patent Grant
Device for securing a watch dial
- Patent number 5,699,324
- Issue date Dec 16, 1997
- Eta Sa Fabriques d'Ebauches
- Friedrich Perrot
- G04 - HOROLOGY
Information Patent Grant
Timepiece
- Patent number 5,430,694
- Issue date Jul 4, 1995
- Eta Sa Fabriques d'Ebauches
- Friedrich Perrot
- G04 - HOROLOGY
Information Patent Grant
Electromagnetic motor, in particular of the stepping type, includin...
- Patent number 5,408,151
- Issue date Apr 18, 1995
- Eta Sa Fabriques d'Ebauches
- Friedrich Perrot
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electromagnetic micromotor for use in watch movements of small dime...
- Patent number 5,206,554
- Issue date Apr 27, 1993
- ETA S.A. Fabriques d'Ebauches
- Friedrich Perrot
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic watch having an opening for receiving a battery and a co...
- Patent number 5,010,532
- Issue date Apr 23, 1991
- Eta Sa Fabriques d'Ebauches
- Friedrich Perrot
- G04 - HOROLOGY
Information Patent Grant
Battery holder for electronic wrist watch
- Patent number 4,362,396
- Issue date Dec 7, 1982
- ETA A.G. Ebauches-Fabrik
- Friedrich Perrot
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Arrangement for securing a dial to a plate in a timepiece
- Patent number 4,213,295
- Issue date Jul 22, 1980
- ETA A.G. Ebauches-Fabrik
- Friedrich Perrot
- G04 - HOROLOGY
Information Patent Grant
Mechanical watch movement
- Patent number 4,157,008
- Issue date Jun 5, 1979
- ETA A.G. Ebauches-Fabrik
- Friedrich Perrot
- G04 - HOROLOGY
Information Patent Grant
Extractable barrel-arbor
- Patent number 4,077,201
- Issue date Mar 7, 1978
- ETA A.G. Ebauches-Fabrik
- Friedrich Perrot
- G04 - HOROLOGY
Information Patent Grant
Method of producing an oscillating weight for automatic timepieces
- Patent number 4,057,885
- Issue date Nov 15, 1977
- ETA A.G. Ebauches-Fabrik
- Urs Giger
- G04 - HOROLOGY
Information Patent Grant
Watch movement frame
- Patent number 4,026,104
- Issue date May 31, 1977
- ETA A.G. Ebauches-Fabrik
- Urs Giger
- G04 - HOROLOGY
Information Patent Grant
Positioning arrangement on a frame member and on a part having to b...
- Patent number 4,023,348
- Issue date May 17, 1977
- ETA A.G. Ebauches-Fabrik
- Urs Giger
- G04 - HOROLOGY
Information Patent Grant
Hairspring and collet assembly for timepieces
- Patent number 3,956,881
- Issue date May 18, 1976
- ETA A.G. Ebauches-Fabrik
- Pierre-Alain Vuille
- G04 - HOROLOGY

Friedrich Perrot

Person

Patents Grantslast 30 patents

Timepiece including fixation device for an element added to a frame

Device for securing a watch dial

Timepiece

Electromagnetic motor, in particular of the stepping type, includin...

Electromagnetic micromotor for use in watch movements of small dime...

Electronic watch having an opening for receiving a battery and a co...

Battery holder for electronic wrist watch

Arrangement for securing a dial to a plate in a timepiece

Mechanical watch movement

Extractable barrel-arbor

Method of producing an oscillating weight for automatic timepieces

Watch movement frame

Positioning arrangement on a frame member and on a part having to b...

Hairspring and collet assembly for timepieces