US PATENT SUBCLASS 136 / 214
.~.~ Including a ray concentrator (e.g., lens, mirror, etc.)

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

Internet Version by PATENTEC © 1999      Terms of Use


136 /   HD   BATTERIES: THERMOELECTRIC AND PHOTOELECTRIC

200  DF  THERMOELECTRIC {15}
213  DF  .~ Radiation pyrometer {2}
214.~.~ Including a ray concentrator (e.g., lens, mirror, etc.) {1}
215  DF  .~.~.~> Lens type

DEFINITION

Classification: 136/214

(under subclass 213) Apparatus which includes some means to cause the rays from the source to be focused or reflected to increase their strength per unit area.