TREA

Cleaning devices

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Industry

  • CPC
  • F21V37/0037
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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F21Lighting F21VDETAILS OF LIGHTING DEVICES, OF GENERAL APPLICATION F21V37/00Details of lighting devices employing combustion as light source, not otherwise provided for Night lamps Votive lamps

Current Industry

F21V37/0037Cleaning devices
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    2162401
    • Patent number 2,162,401
    • Issue date Jun 13, 1939
    • F21 - LIGHTING
  • Information Patent Grant

    1864489
    • Patent number 1,864,489
    • Issue date Jun 21, 1932
    • F21 - LIGHTING
  • Information Patent Grant

    1570194
    • Patent number 1,570,194
    • Issue date Jan 19, 1926
    • F21 - LIGHTING
  • Information Patent Grant

    1549506
    • Patent number 1,549,506
    • Issue date Aug 11, 1925
    • F21 - LIGHTING
  • Information Patent Grant

    1530733
    • Patent number 1,530,733
    • Issue date Mar 24, 1925
    • F21 - LIGHTING
  • Information Patent Grant

    1389077
    • Patent number 1,389,077
    • Issue date Aug 30, 1921
    • F21 - LIGHTING
  • Information Patent Grant

    1349010
    • Patent number 1,349,010
    • Issue date Aug 10, 1920
    • F21 - LIGHTING