US PATENT SUBCLASS 15 / 250.38
.~.~.~ Longitudinal tensioning means for blade

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}
250.361  DF  .~.~ Cleaning element structure {7}
250.38.~.~.~ Longitudinal tensioning means for blade

DEFINITION

Classification: 15/250.38

(under subclass 250.361) Cleaners wherein a surface contacting strip of yieldable or flexible material is placed under tension longitudinally of a backing means for the strip.