4. Geometrical instruments
  5. Straight-line light ray type

Andrew Hirshfeld

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90 degree speed reducer assembly, process, and measuring machine

Measuring and testing – Toothed gear
Patent

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Absorption depletion indicators for anesthetic gas administratio

Signals and indicators – Indicators – Chemically activated type
Patent

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Acceleration sensing apparatus

Electricity: measuring and testing – Electrical speed measuring – With acceleration measuring means
Reexamination Certificate

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Adjustable cable marker

Signals and indicators – Indicators
Patent

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Alerting mechanism for a whistle

Signals and indicators – Horns – whistles and compressional wave generators
Patent

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Profile ID: LFUS-PAI-P-36889

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