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Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 4023981 | Process for the preparation of pigmentary metallic particles coated with an organic polymer and compositions resulting therefrom A pigmentary composition prepared by coating metallic particles of pigment by means of a polymer or copolymer, by covering the polymerization or copolymerization "in situ" of at least one ethylenically unsaturated monomer having at least one oxygen or nit... | 05/17/1977 |
| 3991007 | Process for the preparation of pigmentary particles coated with an organic polymer and compositions resulting therefrom A process for the preparation of pigmentary compositions which comprises coating the particles of pigment by means of a polymer or copolymer, by covering by the polymerisation or copolymerisation "in situ" of at least one ethylenically unsaturated monomer... | 11/09/1976 |
