Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 7718555 | Chemically protective laminated fabric A fabric for chemical protective garments having at least two multilayered film laminates separated by a scrim forming a barrier chamber. The laminates are sandwiched between films of linear low density polyethylene and contain a different film from each other selec... | 05/18/2010 |
| 7434270 | Protective garment and glove assembly A protective garment having gloves at the bottom of sleeve portions which can be quickly attached and detached. The gloves contain an attachment ring which sealingly mates with a respective attachment ring on the sleeve portions by a bayonet attachment. There is als... | 10/14/2008 |
| 7225470 | Protective boots and pant combination A protective garment consisting of boots and pants which can be quickly attached and detached. The boots contain an attachment ring which sealingly mates with a respective attachment ring on the pant leg by a bayonet attachment. There is also provided a kit for retr... | 06/05/2007 |