Pentti Virtanen

Follow

Person

Lahti, SF

People

Patents Grantslast 30 patents

Information Patent Grant
Hydraulically operated percussion device
- Patent number 3,965,799
- Issue date Jun 29, 1976
- Roxon Oy
- Esko Juvonen
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS