Hansruedi Spiess

Person

Delemont, CH

People

Patents Grantslast 30 patents

Information Patent Grant
Manhole cover
- Patent number 5,340,232
- Issue date Aug 23, 1994
- Von Roll AG
- Hansruedi Spiess
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Covering for a ground opening
- Patent number 5,160,213
- Issue date Nov 3, 1992
- Von Roll AG
- Hansruedi Spiess
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Locking device for the positive holding of a cover or grate in a frame
- Patent number 5,071,177
- Issue date Dec 10, 1991
- Von Roll AG
- Hansruedi Spiess
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Locking device for coverings for manholes and other ground openings
- Patent number 5,056,955
- Issue date Oct 15, 1991
- Von Roll AG
- Hansruedi Spiess
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Covering for a ground opening
- Patent number 5,017,039
- Issue date May 21, 1991
- Hansruedi Spiess
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Ground water drain
- Patent number 4,952,094
- Issue date Aug 28, 1990
- Von Roll AG
- Hansruedi Spiess
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Manhole covering
- Patent number 4,925,337
- Issue date May 15, 1990
- Von Roll, AG
- Hansruedi Spiess
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Arrangement for draining liquid collecting on a ground surface
- Patent number 4,909,664
- Issue date Mar 20, 1990
- Von Roll, AG.
- Hansruedi Spiess
- E04 - BUILDING
Information Patent Grant
Frame for forming coverings on ground openings
- Patent number 4,904,120
- Issue date Feb 27, 1990
- Von Roll AG
- Hansruedi Spiess
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Covering for a ground opening
- Patent number 4,873,795
- Issue date Oct 17, 1989
- Von Roll, AG.
- Hansruedi Spiess
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Hansruedi Spiess

Person

Patents Grantslast 30 patents

Manhole cover

Covering for a ground opening

Locking device for the positive holding of a cover or grate in a frame

Locking device for coverings for manholes and other ground openings

Covering for a ground opening

Ground water drain

Manhole covering

Arrangement for draining liquid collecting on a ground surface

Frame for forming coverings on ground openings

Covering for a ground opening