Jan Harrsen

Follow

Person

Ellerau, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Method and device for optically counting small particles
- Patent number 4,675,520
- Issue date Jun 23, 1987
- Amazonenwerke H., Dreyer GmbH & Co. K.G.
- Jan Harrsen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of and device for acoustically counting particles
- Patent number 4,651,331
- Issue date Mar 17, 1987
- Amazonenwerke H. Dreyer GmbH & Co, KG.
- Jan Harrsen
- G01 - MEASURING TESTING