US PATENT SUBCLASS 152 / 332.1
.~.~.~ Cylinder and piston

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

Internet Version by PATENTEC © 1999      Terms of Use


152 /   HD   RESILIENT TIRES AND WHEELS

151  DF  TIRES, RESILIENT {14}
450  DF  .~ Pneumatic tire or inner tube {23}
331.1  DF  .~.~ Multiple chamber {3}
332.1.~.~.~ Cylinder and piston

DEFINITION

Classification: 152/332.1

Cylinder and piston:

(under subclass 331.1) Subject matter wherein the multiple chambers comprise cylinders in which pistons work against air under pressure to carry the load.