Ralph Holland has a total of 2 patent(s) in the database.
* Some patents in this database have one or more inventors, not all of whom may be from Wyoming.
Patent Number: 1539671 View patent at USPTO Title: APPARATUS FOR CLARIFICATION OF GASOLINE Assignee: None Issue Date: May 26, 1925 Inventor(s): Ralph Holland, Laramie, WY
John A. Wirt, Laramie, WY
Patent Number: 1637902 View patent at USPTO Title: LIQUID-LEVEL-CONTROLLING MEANS FOR DRY-CLEANING SYSTEMS Assignee: None Issue Date: August 2, 1927 Inventor(s): Ralph Holland, Laramie, WY