Fillable April 2008 CLASSIFICATION DEFINITIONS 216 - 1 April 2008 ... - uspto

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April 2008 CLASSIFICATION DEFINITIONS 216 - 1 CLASS 216, ETCHING A SUBSTRATE: CESSES SECTION I - CLASS DEFINITION PRO- unwanted material to leave a desired article is proper for this class when said process is not provided for elsewhere. (5) Note. Chemical milling is considered within the scope of the term etching. Note. Class 216 provides only for etching processes. Etching compositions are elsewhere. See...
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