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PCE
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DIFF Subgroup
G11B 3/32

Construction or arrangement of support pillars

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor > Arrangements of heads > Arranging, supporting, or driving of heads or of transducers relatively to record carriers > Supporting in inoperative position > Construction or arrangement of support pillars

CPC:

Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor (G11B11/00, take precedence) > Arrangements of heads > Arranging, supporting, or driving of heads or of transducers relatively to record carriers > Supporting in an inoperative position > Construction or arrangement of support pillars

No child classifications to compare. This is a leaf node in both IPC and CPC.