Friedrich Boettger

Follow

Person

Haan, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Punch change mechanism for a double pressure pin press
- Patent number 4,203,336
- Issue date May 20, 1980
- Malmadie & Co. Maschinenfabrik GmbH
- Friedrich Boettger
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...