4. Boots, shoes, and leggings

William J. Hildebrandt

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Digital tape rule

Boots – shoes – and leggings
Patent

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Method for making power boring bits

Metal tools and implements – making – Blank or process – Drill
Patent

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Mitre box

Cutting – By tool reciprocable along elongated edge – With tool in-feed
Patent

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Optical sensing system for extensible tape rules

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent

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Power boring bits

Cutting by use of rotating axially moving tool – Tool or tool with support – Having axially extending peripheral cutting spur
Patent

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Profile ID: LFUS-PAI-P-530469

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