US PATENT SUBCLASS 29 / 737
.~.~ Magnetic memory device

Current as of: June, 1999
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29 /   HD   METAL WORKING

700  DF  MEANS TO ASSEMBLE OR DISASSEMBLE {55}
729  DF  .~ Means to assemble electrical device {14}
737.~.~ Magnetic memory device

DEFINITION

Classification: 29/737

Magnetic memory device:

(under subclass 729) Apparatus including means peculiar to the assembly of a device capable of being magnetized at a prescribed area, in accordance with a condition, which magnetized area is to be later detected and utilized to show that condition.