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Scale indicator used with electronic setting apparatus for setting numerical values of physical quantities or the like

  • US 4,974,217 A
  • Filed: 04/04/1989
  • Issued: 11/27/1990
  • Est. Priority Date: 04/04/1989
  • Status: Expired due to Fees
First Claim
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1. A scale indicator used with an electronic setting apparatus, comprising:

  • a first indication sheet having scale marks indicated thereon, a plurality of windows formed therein and an opening through which an operation member is inserted;

    a second indication sheet in contact with the first indication sheet and having an opening through which said operation member is inserted; and

    a third indication sheet arranged rotatably in a clearance between said first indication sheet and said second indication sheet, having at least one surface on which a plurality of characters representing a plurality of series of units and numerals for indicating a plurality of scale setting ranges are indicated, and an opening through which the operation member is inserted;

    wherein said third indication sheet is adapted to be rotated freely from outside, and the characters of the units and numerals are adapted to be exposed by series at predetermined positions respectively through the windows of the first indication sheet.

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