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Combination tiller and cultivator and reversible drive assembly

Earth working – With drive means for tool or cleaner – Guided by walking attendant
Patent

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Combination tractor and farm implement hitch means

Earth working – Mast type hitch
Patent

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Combinations of two soil cultivating implements

Earth working – With drive means for tool or cleaner – Plural driven tools
Patent

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Combine header adaptor for a three-point hitch

Earth working – Mast type hitch
Patent

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Combined automatic and manual hydraulic control for motor grader

Earth working – Automatic power control – Land leveller type
Patent

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Combined chisel plow, rod weeder and drill

Earth working – With drive means for tool or cleaner – Subsurface shaft or bar
Patent

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Combined control machine for an orchard

Earth working – With drive means for tool or cleaner
Patent

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Combined depth-control and wing-lift hydraulic circuit

Earth working – With earth marker
Patent

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Combined digger and mushroom compost compacting assembly

Earth working – With drive means for tool or cleaner – Plural driven tools
Reexamination Certificate

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Combined furrowing and tamping tool

Earth working – Guided by walking attendant; supported – propelled – or held... – Hand tool
Patent

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Combined garden cultivator and lawn edger

Earth working – Lawn edger – Rolling or driven cutter
Patent

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Combined harrow and harrow bar

Earth working – Diverse tools – Rolling and non-rolling
Patent

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Combined lawn aerating and weed remover apparatus and method of

Earth working – Lawn aerator or perforator – or plug remover – Earth removing
Patent

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Combined rock puller and land leveller

Earth working – Diverse tools – Second implement follows path of first
Patent

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Combined scarifier and branch slashing and crushing implement

Earth working – Rolling – rotating or orbitally moving tool – Tool has circumferentially spaced teeth – tines – blades or...
Patent

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Combined tooth retractor and blade latching mechanism

Earth working – Diverse tools – Second implement follows path of first
Patent

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Combined tractor and dump truck vehicle

Earth working – Mast type hitch
Patent

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Combined turnplow and subsoiler

Earth working – Diverse tools – Second implement follows path of first
Patent

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Common depth control adjustment for a ground opener

Earth working – With ground support vertically adjustable relative to frame – Tool land ground support moved together relative to frame
Patent

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Communication system for surveying instrument

Earth working – Automatic power control
Reexamination Certificate

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