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

Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.

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Class 213/103 - Transversely sliding bill

Subclass of Class 213 - Railway draft appliances
Definition: Where the hook or knuckle is formed with a transversly-sliding
No. of patents: 0