TREA

with glowrod and candle

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Industry

  • CPC
  • H05B31/0033
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Parent Industries

HELECTRICITY H05Electric techniques H05BELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR H05B31/00Electric arc lamps

Current Industry

H05B31/0033with glowrod and candle
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    1808164
    • Patent number 1,808,164
    • Issue date Jun 2, 1931
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    1802680
    • Patent number 1,802,680
    • Issue date Apr 28, 1931
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents