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Alvin Wirthlin

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Absolute-measuring position transducer system for industrial rob

Geometrical instruments – Miscellaneous – Light direction
Patent

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Accessory for carpenter levels

Geometrical instruments – Indicator of direction of force traversing natural media – With viewing aid
Patent

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Actuator for a counter on a distance measuring device

Geometrical instruments – Distance measuring – Of length by rolling contact
Patent

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Adjustable square and scoring tool

Geometrical instruments – Scriber – Parallel line
Patent

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Adjustable yardage plate

Geometrical instruments – Straight-line light ray type – Structurally installed
Patent

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Profile ID: LFUS-PAI-P-2893

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