4 Patents
#3 in
#3,789 in EN
Hepworth & Grandage Limited
Forward Citations = 79
5 inventors:
5 inventors (with patents filed for the assignee):
Rex William Grimshaw (2 out of 2 patents)
John G Peacey (1 out of 11 patents)
Edward Douglas Hartley (1 out of 1 patent)
4. Frederick Edward Cockcroft (1 out of 1 patent)
5. Colin Poole (1 out of 1 patent)
4 patents: