TREA

Disk for matrix display

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Information

  • Patent Grant
  • D271219
  • Patent Number
    D271,219
  • Date Filed
    Thursday, December 11, 1980
    44 years ago
  • Date Issued
    Tuesday, November 1, 1983
    41 years ago
  • US Classifications
    Field of Search
    • US
    • D20 10
    • D20 12
    • D20 19
    • D20 27
    • D20 28
    • D20 40
    • D20 42
    • D20 21
    • 040 447
    • 040 449
    • 040 439
    • 040 440
    • 040 477
    • 040 479
    • 340 373
  • International Classifications
    • Term of Grant
      14Years
Information
Abstract
Description
Claims
  • The ornamental design for a disk for a matrix display, as shown and described.
US Referenced Citations (2)
Number Name Date Kind
3975728 Winrow Aug 1976
3991496 Helwig et al. Nov 1976
Foreign Referenced Citations (1)
Number Date Country
52-24500 Feb 1977 JPX