4. Wheel substitutes for land vehicles
  5. Combined or convertible

David S. Fenton

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Guiding guard for crawler tracks

Wheel substitutes for land vehicles – Combined or convertible
Patent

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Portable sawmill with bi-directional cutting circular saws

Cutting – With means to convey work relative to tool station – Cut made parallel to direction of and during work movement
Reexamination Certificate

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Rail grooming machine and method of use

Gear cutting – milling – or planing – Milling – Process
Reexamination Certificate

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Ring saw

Woodworking – Special-work machine – Tree felling
Patent

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System for replacing feedroll inserts

Woodworking – Rotary cutter – Having slotted bit seat
Patent

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Profile ID: LFUS-PAI-P-1486256

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