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Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
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| Number | Title | Issue Date |
| 6802324 | Sheet metal washer having washer cassette mountable on tank A sheet metal washer system for cleaning metal blanks includes a washer cassette with an open bottom that is selectively mounted on a tank assembly, a drive motor assembly and a filter assembly. The washer cassette includes an inlet opening and an exit opening with ... | 10/12/2004 |
| 4135447 | Machine for printing measuring tape A machine for printing English or metric or combination English metric measuring tapes of long or short length comprising a plurality of self-contained modules for controlling, feeding, printing, stabilizing, and taking up the printed tape, the printing m... | 01/23/1979 |
| 4056343 | Apparatus for continuously producing raised marks on plastic cable jackets The apparatus for producing raised markings on a cable's plastic jacket disclosed provides for at least one drum shaped marking member, which may be driven by the cable itself or, if there are a pair of such drums, at least one is driven by means of a ste... | 11/01/1977 |
| 4051774 | Machine for printing measuring tapes A machine for printing steel tapes of long length comprising a first printing station for printing inch graduations thereon in a first color, a second printing station for printing foot graduations and other data thereon in a second color, and an automati... | 10/04/1977 |
