IP Library › Granted Patent US 5,492,290
Granted Patent Utility
US 5,492,290 · App. 08/331,109

Model railroad operation using proximity selection

Inventors: Patrick A. Quinn, Frederick E. Severson
Patented Case View Patent ↗
Granted: Feb 20, 1996 Filed: Oct 28, 1994
Inventors
Patrick A. Quinn
Frederick E. Severson
Assignee (at issue)
QS Industries, Inc.

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Quick Facts
Patent No.
US 5,492,290
App. No.
08/331,109
Filed
1994-10-28
Granted
1996-02-20
Kind
A