Hans-Henning Doyen

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Neustadt-Konigsbach, DE

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Patents Grantslast 30 patents

Information Patent Grant
Mower, especially for grass at airports
- Patent number 4,631,910
- Issue date Dec 30, 1986
- Ing. Alfred Schmidt GmbH
- Hans-Henning Doyen
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Drive system on a carrier vehicle for various implements attached o...
- Patent number 4,632,200
- Issue date Dec 30, 1986
- Ing. Alfred Schmidt GmbH
- Hans-Henning Doyen
- B60 - VEHICLES IN GENERAL