Harold Ratcliffe

JC James Howden & Co.: 1 patents #1 of 2Top 50%

📍 Kilmacolm, GB: #1 of 1 inventorsTop 100%

Overall (1989): #137,037 of 140,708Top 100%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4826214	Pipeline safety joint	—	1989-05-02