Ernst Wohlwend

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Patents Grantslast 30 patents

Information Patent Grant
Hollow crown drill with end face cutting members
- Patent number 5,417,526
- Issue date May 23, 1995
- Hilti Aktiengesellschaft
- Maximilian Stock
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Hollow drilling tool
- Patent number 5,069,584
- Issue date Dec 3, 1991
- Hilti Aktiengesellschaft
- Josef Obermeier
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Motorized hand tool for drilling
- Patent number 4,448,261
- Issue date May 15, 1984
- Hilti Aktiengesellschaft
- Heinz Kousek
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of setting fastening elements in a hard receiving material
- Patent number 4,287,656
- Issue date Sep 8, 1981
- Hilti Aktiengesellschaft
- Horst-Detlef Gassman
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...