JL

Joseph H. F. G. Lipperts

HB Hazemeijer B.V.: 2 patents #1 of 3Top 35%
Overall (1982): #11,778 of 81,411Top 15%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4331850 Vacuum switch including a getter device — 1982-05-25
4323590 Method for improving switch contacts, in particular for vacuum switches — 1982-04-06