Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Application No. | Application Title | Issue Date |
| 20090100808 | BUCKLE-FREE SLIP-ON HORSE BOOT WITH GAITER A horse boot (10) includes a shell (12) and a gaiter (22). The shell has a sole (14) and an upper (16) with a vertical slit (18). The gaiter (22) is releasably attached to the heel of the upper and is wrapped around the p... | 04/23/2009 |
| 20090071109 | SLIP-ON HORSE BOOT WITH REPLACEABLE PASTERN GAITER A horse boot (10) includes a shell (12) for a hoof and a gaiter (22) for the pastern. The shell has a sole (14), an upper (16), a tongue (18), and an elastic strap (60) for tightening the upper and the tongue around the h... | 03/19/2009 |