US PATENT SUBCLASS 29 / 720
.~ With signal, scale, illuminator, or optical viewer


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

700  DF  MEANS TO ASSEMBLE OR DISASSEMBLE {55}
720.~ With signal, scale, illuminator, or optical viewer {1}
721  DF  .~.~> For work-holder for assembly or disassembly


DEFINITION

Classification: 29/720

With signal, scale, illuminator, or optical viewer:

(under subclass 700) Apparatus including, in addition to structure for performing a class type operation, either (1) means to produce a perceptible (e.g., audible or visual) manifestation of a condition of a part (or all) of the machine or the work; (2) means to designate a characteristic of the apparatus, the work, or the product; (3) means to increase the lighting intensity in the vicinity of the apparatus or the work; or (4) means to modify light waves to make characteristics of the apparatus, the work, or the product more readily discernable to the view of the operative.