8
Roloc. 3m CompanyMichael L Gannon October 2012: US 85544948 (7. Machinery)

9
Pps. 3m CompanyMichael L Gannon June 2012: US 85406783 (7. Machinery)

10
Pps. 3m CompanyMichael L Gannon June 2012: US 85406784 (7. Machinery)