CP

Champion Spark Plug

Rank (1989): #1518 of 11,124Top 15%
6 inventors
7
Patents 1989

Top Inventors at Champion Spark Plug 1989

Showing 1–6 of 6 inventors

RankNamePatents
1 Frederick B. Hadtke 3
2 William R. Manning 1
2 Michael Lenk 1
2 Tom L. Rothenbuhler 1
2 Charles I. Kowalski 1
2 Joseph Nemeth 1