JH

Jorma Hirvi

SG Sargent & Greenleaf: 1 patents #19 of 45Top 45%
Overall (All Time): #1,262,586 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6910357 Tamper proof locking device — 2005-06-28
6519989 Lever lock unit — 2003-02-18
5502990 Recodable lever tumbler lock for use in high security safes — 1996-04-02
4836000 Lever tumbler lock — 1989-06-06