Unmixable liquids inside

Industry

  • CPC
  • H01H2239/042
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Patents Grantslast 30 patents

  • Information Patent Grant

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    • Patent number 4,892,999
    • Issue date Jan 9, 1990
    • Leona Electronics Co., Ltd.
    • Ho Wai-Kwan
    • H01 - BASIC ELECTRIC ELEMENTS