US PATENT SUBCLASS 445 / 47
.~.~ Multi-apertured panel making, e.g., CRT mask


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



445 /   HD   ELECTRIC LAMP OR SPACE DISCHARGE COMPONENT OR DEVICE MANUFACTURING

1  DF  PROCESS {13}
46  DF  .~ Electrode making {5}
47.~.~ Multi-apertured panel making, e.g., CRT mask


DEFINITION

Classification: 445/47

Multi-apertured panel making, e.g., CRT mask:

(under subclass 46) Method wherein the fabricated or manufactured electrode is a panel having lateral dimensions much larger than its thickness and which is provided with an array of perforations or equivalent arrangement such as that located adjacent the screen of a cathode-ray tube to delineate the path of various electron or light beams within the tube as in a color television picture tube.

SEE OR SEARCH THIS CLASS, SUBCLASS:

37, for method including an assembly or disassembly step wherein a CRT mask is made - see the search notes thereunder.

SEE OR SEARCH CLASS

216, Etching a Substrate: Processes,

56, involving etching to produce porous or perforated article.

427, Coating Processes,

58+, for coating methods of making an electrical product.