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Device for warning of impending roof-fall in underground excavat

Signals and indicators – Indicators – Visual light signal
Patent

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Device serving as indicator of thermal history especially for fr

Signals and indicators – Indicators – Temperature responsive or compensating means
Patent

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Device use indicator

Signals and indicators – Indicators – Chemically activated type
Reexamination Certificate

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Devices for marking a page of a book and for indicating the numb

Signals and indicators – Indicators – Page type
Patent

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Dial

Signals and indicators – Indicators – Operator movable
Patent

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Dial adjustment and calibration of oven control devices

Signals and indicators – Indicators – Temperature responsive or compensating means
Patent

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Dial arrangement for a combination instrument

Signals and indicators – Indicators – Scale structure
Patent

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Dial indicator cap

Signals and indicators – Indicators – Operator movable
Reexamination Certificate

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Dial needle with indexed angular position

Signals and indicators – Indicators – Index structure
Patent

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Dial tampering detector

Signals and indicators – Indicators – Rotary indicator with actuating means
Patent

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Dial-a-Metric

Signals and indicators – Indicators – Operator movable
Patent

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Diet management device

Signals and indicators – Indicators – Operator movable
Patent

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Differential pressure indicator

Signals and indicators – Indicators – Magnetically actuated
Patent

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Differential pressure indicator

Signals and indicators – Indicators – Fluid flow
Patent

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Differential pressure indicator

Signals and indicators – Indicators – Fluid flow
Patent

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Differential pressure responsive indicating device

Signals and indicators – Indicators – Fluid flow
Patent

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Diffusion controlled security tags

Signals and indicators – Indicators – Chemically activated type
Patent

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Digital graphic image analyzer

Signals and indicators – Indicators – Rotary indicator with actuating means
Patent

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Direction indicating clamp for attachment to fire fighting hose

Signals and indicators – Indicators – By touch
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Directional shock detector

Signals and indicators – Indicators – Impact type
Patent

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