US PATENT SUBCLASS 427 / 67
.~.~ Fluorescent lamp


Current as of: June, 1999
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427 /   HD   COATING PROCESSES

58  DF  ELECTRICAL PRODUCT PRODUCED {21}
64  DF  .~ Fluorescent or phosphorescent base coating (e.g., cathode-ray tube, luminescent screen, etc.) {8}
67.~.~ Fluorescent lamp


DEFINITION

Classification: 427/67

(under subclass 64) Processes wherein the product is a lamp with a fluorescent coating which can be activated by means of an electric discharge or excited gas.

(1) Note. This subclass includes processes of making certain articles for lighting purposes wherein the coatings may be described as luminescent, fluorescent or phosphorescent, however, subclass 66 above provides for producing electroluminescent lamps.