Hendrik Langejan

Follow

Person

Krimpen a.d. Lek, NL

People

Patents Grantslast 30 patents

Information Patent Grant
Floating hopper barge with discharging trap doors in the bottom
- Patent number 4,644,888
- Issue date Feb 24, 1987
- IHC Holland N.V.
- Hendrik Langejan
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Floating device comprising storage holds for bulk freight, such as...
- Patent number 4,502,405
- Issue date Mar 5, 1985
- IHC Holland N.V.
- Hendrik Langejan
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING