4. Geometrical instruments

Robert E. South

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Applicator for liquid floor levelers

Brushing – scrubbing – and general cleaning – Implements – Bladed spreader
Patent

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Earth magnetic-field augmenters

Surgery – Magnetic field applied to body for therapy
Reexamination Certificate

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Electrical outlet guard

Geometrical instruments
Patent

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Metal extension planks

Fire escape – ladder – or scaffold – Platform – Relatively movable sections
Patent

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Rake

Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Design Patent

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Profile ID: LFUS-PAI-P-855007

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