FH

Friedrich-Wilhelm von Hackewitz

📍 Brackenheim, DE: #32 of 177 inventorsTop 20%
Overall (All Time): #1,270,576 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6640947 Rolling element clutch — 2003-11-04
6471411 Self-containing full-complement roller bearing cage — 2002-10-29
5029857 Frame with adjustable string tensioning means — 1991-07-09
4995608 Stringed frame with adjustable tensioning — 1991-02-26