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Riverside Press, Inc.

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  • Dallas, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Voting machine with punch card attachment
    • Patent number 4,025,040
    • Issue date May 24, 1977
    • Riverside Press, Inc.
    • Cothburn M. O'Neal
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Method of making a punch assembly
    • Patent number 3,999,279
    • Issue date Dec 28, 1976
    • Riverside Press, Inc.
    • Cothburn M. O'Neal
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Voting machine
    • Patent number 3,977,357
    • Issue date Aug 31, 1976
    • Riverside Press, Inc.
    • Cothburn M. O'Neal
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    Voting machine
    • Patent number 3,971,914
    • Issue date Jul 27, 1976
    • Riverside Press, Inc.
    • Cothburn M. O'Neal
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    Voting machine with band interlock
    • Patent number 3,934,794
    • Issue date Jan 27, 1976
    • The Riverside Press, Inc.
    • Cothburn M. O'Neal
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    Voting machine
    • Patent number 3,935,426
    • Issue date Jan 27, 1976
    • The Riverside Press, Inc.
    • Cothburn M. O'Neal
    • G07 - CHECKING-DEVICES

Patents Applicationslast 30 patents

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