Research/Patents/US 6175625
US 6175625

Control Circuits For Electric Coding Machines

Assignee

Filed

Dec 15, 1944

Granted

Jan 16, 2001

Location

35 USC §181 Secrecy Order

Imposed

Mar 12, 1982

Rescinded

Nov 5, 1999

Duration

17 years, 8 months

Back to patent indexSource: USPTO 35 USC §181 secrecy order records