4. Earth working
  5. Convertible; or changeable by disassembly or assembly
  6. To device classifiable in another class

David E. Schneider

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Cementing plug

Wells – Pistons – fluid driven into well
Patent

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Cementing plug

Wells – Pistons – fluid driven into well
Patent

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Hydraulic lock alleviation device, well cementing stage tool, an

Wells – Pistons – fluid driven into well – Surrounding conduit valve or closure opened by piston
Patent

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Quick attach system for front end loader

Material or article handling – Vertically swinging load support – Shovel or fork type
Patent

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Quick attach tractor mounting assembly for agricultural dozer an

Earth working – Convertible; or changeable by disassembly or assembly – To device classifiable in another class
Patent

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Profile ID: LFUS-PAI-P-460677

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