FH

Franciscus C. M. De Haas

U.S. Philips: 1 patents #205 of 1,030Top 20%
Overall (1989): #115,044 of 140,708Top 85%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4847908 Loudspeaker having a two-part diaphragm for use as a car loudspeaker Joris A. M. Nieuwendijk, Johannes W. T. Bax, Johannes J. M. Kamphues 1989-07-11