Inventor

HAKKINEN LEO

FI3 patents

⚠️ This page may combine multiple inventors who share the name “HAKKINEN LEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TAMPELLA OY AB

2 patents

US4676322AJun 30, 1987

Supporting arrangement for a feed device for a rock drilling machine

TAMPELLA OY AB2 citations57

US4065845AJan 3, 1978

Device for changing bore crowns

TAMPELLA OY AB4 citations54

TAMPELLA AB MECHANICAL WORKSHO

1 patent

US3966019AJun 29, 1976

Lubricating system of pressure fluid operated rock drill machines

TAMPELLA AB MECHANICAL WORKSHO18 citations61