Granted Patent
Utility
US 4,360,889 · App. 06/165,272
Rotary position indicating circuit
Inventor:
Rudolph J. Liedtke
Patented Case
View Patent ↗
Granted: Nov 23, 1982
Filed: Jul 2, 1980
Inventor
Rudolph J. Liedtke
Assignee (at issue)
F. Jos. Lamb Company
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.