John Kieffer 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: 3808363 View patent at USPTO Title: CONVERSATIONAL DATA TERMINAL HAVING A FUNCTION REPEAT CAPABILITY Assignee: Datel Corporation Issue Date: April 30, 1974 Inventor(s): John B. Kieffer, Riverton, WY
Patent Number: 4005772 View patent at USPTO Title: AUTOMATIC JUSTIFYING TYPEWRITER HAVING PITCH CHANGING AND LINE SPACING APPARATUS Assignee: Harris Corp. Issue Date: February 01, 1977 Inventor(s): John B. Kieffer, Riverton, WY
Raymond B. Larsen, Riverton, WY
Gregory G. Vogel, Lewisville, TX