HP

Heinrich A. Pfeffer

Overall (1982): #59,512 of 81,411Top 75%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4328667 Field-emission ion source and ion thruster apparatus comprising such sources Dominique Valentian, Cesare Bartoli, Hans-Joachim Herhudt V. Rohden, Duncan Stewart 1982-05-11