Granted Patent
Utility
US 4,579,061 · App. 06/626,812
Spike driving machine including improved rail clamping apparatus
Inventor:
Andrew M. Dieringer
Patented Case
View Patent ↗
Granted: Apr 1, 1986
Filed: Jun 29, 1984
Inventor
Andrew M. Dieringer
Assignee (at issue)
REXNORD GMBH
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.