Granted Patent
Utility
US 5,874,949 · App. 08/839,950
Horizontal synchronizing signal frequency measuring instrument for multi-synchronism type display unit
Inventor:
Shinya Furukawa
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Apr 24, 1997
Inventor
Shinya Furukawa
Assignee (at issue)
NEC 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.