Wolfgang Arm

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Rendsburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Securing device for a drainage channel
- Patent number 6,793,439
- Issue date Sep 21, 2004
- ACO Severin Ahlmann GmbH & Co. KG
- Wolfgang Arm
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Drainage gutter and method of installing
- Patent number 5,518,336
- Issue date May 21, 1996
- ACO Severin Ahlmann GmbH & Co. KG
- Wolfgang Arm
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Means for securing a cover over a drainage channel
- Patent number 5,468,096
- Issue date Nov 21, 1995
- ACO Severin Ahlmann GmbH & Co., KG
- Heinrich Sauerwein
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Surface drainage apparatus
- Patent number 5,466,091
- Issue date Nov 14, 1995
- ACO Severin Ahlmann GmbH & Co., KG
- Heinrich Sauerwein
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Surface drainage apparatus
- Patent number 5,462,382
- Issue date Oct 31, 1995
- ACO Severin Ahlmann GmbH & Co., KG
- Heinrich Sauerwein
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Surface drainage apparatus
- Patent number 5,437,516
- Issue date Aug 1, 1995
- ACO Severin Ahlmann GmbH & Co., KG
- Heinrich Sauerwein
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING