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Method and apparatus for aligning surfaces in close proximity

  • US 5,875,560 A
  • Filed: 11/21/1996
  • Issued: 03/02/1999
  • Est. Priority Date: 11/21/1996
  • Status: Expired due to Term
First Claim
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1. An apparatus for aligning surfaces in close proximity, comprising:

  • at least three travel sensitive switches disposed between the surfaces, each switch having a known actuating distance; and

    a display connected to the switches to show the status of each switch.

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