IP Library › Granted Patent US 4,974,862
Granted Patent Utility
US 4,974,862 · App. 07/356,139

Hand truck with safety device

Inventor: David J. Maupin
Patented Case View Patent ↗
Granted: Dec 4, 1990 Filed: May 24, 1989
Inventor
David J. Maupin

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Quick Facts
Patent No.
US 4,974,862
App. No.
07/356,139
Filed
1989-05-24
Granted
1990-12-04
Kind
A