US PATENT SUBCLASS 427 / 560
.~.~ Sonic or ultrasonic (e.g., cleaning or removing material from substrate, etc.)

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

457  DF  DIRECT APPLICATION OF ELECTRICAL, MAGNETIC, WAVE, OR PARTICULATE ENERGY {15}
532  DF  .~ Pretreatment of substrate or post-treatment of coated substrate {9}
560.~.~ Sonic or ultrasonic (e.g., cleaning or removing material from substrate, etc.)

DEFINITION

Classification: 427/560

Sonic or ultrasonic (e.g., cleaning or removing material from substrate, etc.):

(under subclass 532) Processes wherein sonic or ultrasonic energy is utilized to pretreat a substrate or to post-treat a coated substrate.

(1) Note. Ultrasonic has a frequency above sonic; i.e., frequencies above 16,000 hertz and below radio waves.