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Jean Engdahl
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Bienne, CH
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last 30 patents
Information
Patent Grant
Programmable logic apparatus for entering, processing and transmitt...
Patent number
4,510,602
Issue date
Apr 9, 1985
Fordahl S.A.R.L.
Jean Engdahl
G05 - CONTROLLING REGULATING
Information
Patent Grant
Sealed electric passages
Patent number
4,310,363
Issue date
Jan 12, 1982
Societe Suisse pour l'Industrie Horlogere Management Services S.A.
Jean Engdahl
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Sealed piezoelectric resonator with integral mounting frame
Patent number
4,216,402
Issue date
Aug 5, 1980
Societe Suisse pour l'Industrie Horlogere (SSIH) Management Services, S.A.
Jean Engdahl
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Quartz crystal resonator
Patent number
4,124,809
Issue date
Nov 7, 1978
Societe Suisse pour l'Industrie Horlogere Management Services S.A.
Jean Engdahl
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Fastening and suspension element for a piezoelectric resonator
Patent number
4,104,553
Issue date
Aug 1, 1978
Societe Suisse pour l'Industrie Horlogere (SSIH) Management Services S.A.
Jean Engdahl
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Quartz piezo-electric element vibrating in a coupled mode
Patent number
4,071,797
Issue date
Jan 31, 1978
Societe Suisse pour l'Industrie Horlogere Management Services S.A.
Alphonse Ernst Zumsteg
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Frequency comparator
Patent number
4,068,171
Issue date
Jan 10, 1978
Societe Suisse pour l'Industrie Horlogere Management Services S.A.
Raymond Huguenin
G01 - MEASURING TESTING
Information
Patent Grant
Process for manufacturing piezoelectric resonators and resonators r...
Patent number
4,012,648
Issue date
Mar 15, 1977
Societe Suisse pour 1'Industrie Horlogere Management Services S.A.
Jean Engdahl
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Data entry and decoding system for scripted data
Patent number
4,005,400
Issue date
Jan 25, 1977
Societe Suisse pour l'Industrie Horologere Management Services S.A.
Jean Engdahl
G06 - COMPUTING CALCULATING COUNTING