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Snowthrower discharge assembly clearance method and...

Excavating – Snow or ice removing or grooming by portable device – Motorized rotary excavating tool
Reexamination Certificate

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Snowthrower having impeller assist propulsion

Excavating – Snow or ice removing or grooming by portable device – Motorized rotary excavating tool
Reexamination Certificate

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Snowthrower platform

Excavating – Snow or ice removing or grooming by portable device – Combined or convertible
Patent

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Snowthrower wheel drive steering system

Excavating – Snow or ice removing or grooming by portable device – Combined or convertible
Reexamination Certificate

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Snowthrower wheel drive steering system

Excavating – Snow or ice removing or grooming by portable device – Combined or convertible
Reexamination Certificate

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Snowthrower with resilient impeller

Excavating – Snow or ice removing or grooming by portable device – Vehicle mount with obstacle responsive trip – or yieldable tool
Patent

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Snubber for dipper door

Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent

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Snubber having unitary elastic body

Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent

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Spill sheet structure on loader bucket

Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent

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Spot mounder method and apparatus

Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent

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Spreader attachment apparatus

Excavating – Snow or ice removing or grooming by portable device – Snow or ice surface groomer
Patent

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Spring bracket design and method for snow plow blade...

Excavating – Snow or ice removing or grooming by portable device – Vehicle mount with obstacle responsive trip – or yieldable tool
Reexamination Certificate

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Squeegee blade

Excavating – Snow or ice removing or grooming by portable device – Vehicle mount with obstacle responsive trip – or yieldable tool
Reexamination Certificate

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Stop member for snowplow assembly

Excavating – Snow or ice removing or grooming by portable device – Vehicle mount with obstacle responsive trip – or yieldable tool
Reexamination Certificate

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Strata rock bucket

Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent

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Strata rock bucket

Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent

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Stress relief for walking dragline frames

Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent

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Support assembly for a dragline bucket

Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent

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Support tub for dragline excavating machine

Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent

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Support wheels mounted in the vicinity of the center of gravity

Excavating – Snow or ice removing or grooming by portable device – With specific means to facilitate connection to – or...
Patent

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