4. Combustion
  5. Timer, programmer, retarder or condition responsive control
  6. Shutdown by sensed absence of flame in proving period

S. D. Schreyer

Examiner

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AC-DC switching regulator to supply uninterruptible power

Electrical transmission or interconnection systems – Plural supply circuits or sources – One source floats across or compensates for other source
Patent

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Additional line coupling circuit to an intercom telephone set

Patent

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Adjustable pitch drum

Music – Instruments – Drums
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Adjustable pitch drum

Music – Instruments – Drums
Patent

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Adjustable time delay relay

Electrical transmission or interconnection systems – Switching systems – Switch actuation
Patent

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Profile ID: LFUS-PAI-P-14027

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