US PATENT SUBCLASS 15 / 250.15
.~.~ Cleaning element spring returned

Current as of: June, 1999
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15 /   HD   BRUSHING, SCRUBBING, AND GENERAL CLEANING

246  DF  ATTACHMENTS {8}
250.001  DF  .~ Optical-member-attachable cleaner (e.g., windshield wiper) {28}
250.15.~.~ Cleaning element spring returned

DEFINITION

Classification: 15/250.15

(under subclass 250.001) Cleaners comprising a surface contacting member mounted for movement back and forth over a

surface to be cleaned and resilient means urging the member throughout one of its directions of movement.