US PATENT SUBCLASS 238 / 90-- .~.~.~.~ Closed loop

US PATENT SUBCLASS 238 / 90
.~.~.~.~ Closed loop

Current as of: June, 1999
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238 /	HD	RAILWAYS: SURFACE TRACK

29	DF	TIES {9}
83	DF	.~ Nonmetallic {1}
84	DF	.~.~ Plastic compound {2}
85	DF	.~.~.~ Internal reinforcements {8}
90		.~.~.~.~ Closed loop

DEFINITION

Classification: 238/90

Internal-reinforcement members of loop form for cement ties.