4. Elongated-member-driving apparatus
  5. With means to support member and/or work relative to driver
  6. Impact-type driver

Roy E. Evans

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Installation tool for roof gutters

Elongated-member-driving apparatus – With means to support member and/or work relative to driver – Impact-type driver
Patent

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Method of heat treating a zone of each of a plurality of article

Metal treatment – Process of modifying or maintaining internal physical... – Heating or cooling of solid metal
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