Granted Patent
Utility
US 3,941,987 · App. 05/573,339
Method and apparatus for numerical control
Inventor:
Carl E. Tack, Jr.
Patented Case
View Patent ↗
Granted: Mar 2, 1976
Filed: Apr 30, 1975
Inventor
Carl E. Tack, Jr.
Assignee (at issue)
Danly Machine Corporation
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.