U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."

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Class 152/293 - Enclosed

Subclass of Class 152 - Resilient tires and wheels
Definition: The radial coil springs and all radially reciprocating elements
No. of patents: 0