LandOfFree - US Patents - Listing for Horology: time measuring systems or devices

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Hourglass construction

Horology: time measuring systems or devices – Time interval – Gravity actuated type

Patent

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Hourglass novelty apparatus having unequal chamber volumes

Horology: time measuring systems or devices – Time interval – Gravity actuated type

Patent

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Hourglass with bypass duct

Horology: time measuring systems or devices – Time interval – Gravity actuated type

Reexamination Certificate

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Hourly flagged digital time displays

Horology: time measuring systems or devices – Chronological – With electro-optical display

Patent

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Housing assembly for instruments

Horology: time measuring systems or devices – Cases – With support details

Patent

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Housing for an energy cell in a wristwatch

Horology: time measuring systems or devices – Cases – Wrist worn

Patent

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Housing for instruments powered by ambient oxygen elements

Horology: time measuring systems or devices – Cases – Of particular material

Patent

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Human factor time translation of business information to...

Horology: time measuring systems or devices – Combined with disparate device

Reexamination Certificate

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Hybrid-synchronous type clock synchronizing apparatus of which d

Horology: time measuring systems or devices – Combined with disparate device

Patent

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Hybrid-synchronous type clock synchronizing apparatus of which d

Horology: time measuring systems or devices – Combined with disparate device

Patent

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