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My invention relates to grinding machines, and moreparticularly to a portable machine for use in conjunction with manhole casings and their covers.

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Grinding machine Abstract. A grinding machine comprises a grinding member having a thickness greater than 10 mm and an outer contact surface extending in a thickness ...

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The present invention concerns a grinding machine for the machining of parts with a surface generated by rotation, in particular formed of hard material such as ...

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Patents Publication number ... The present invention comprises a grinding machine wherein the axis of the grinding wheel is located at an inclination to the ...

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The mirror or lens grinding machine is a masterpiece of mechanical engineering. It has several gears in mesh at all times and also has several variable settings built ...

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History of the grinding machine: a historical ... Rotary filling was the first in base of invention of the first milling machine that reduced the efforts need to put ...

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US Patent # 5,865,667. Grinding machine

The present invention concerns a grinding machine for the machining of parts with a surface generated by rotation, in particular formed of hard material such as ...

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Grinding machine - Gardner, Frederic E.

The invention relates generally to grinding machines and more particularly to a machine employing a flexible abrasive belt. The general object of the invention is to ...

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US Patent Application No: 2016/0192,809 Number of patents in Portfolio can not be more than 2000 COFFEE GRINDING MACHINE

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There are many versions of the sewing machine before the Industrial Revolution. However, the inventor Elias Howe improved previous models of the sewing machine.

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