Description: 264 plastic and nonmetallic article shaping or treating: processes / 264 plastic and nonmetallic article shaping or treating: processes/(405) direct application of electrical or wave energy to work (e.g., electromagnetic wave, particulate, magnetic, induction heat, sonic, electrostatic energy, etc.) (426) producing or treating inorganic hydro-settable material (e.g., cement, plaster, etc.)
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Patent Apps in 264/426
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