US PATENT SUBCLASS 33 / 629
.~.~.~.~ Screw thread
Current as of:
June, 1999
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GEOMETRICAL INSTRUMENTS
501
DF
GAUGE
{61}
613
DF
.~ Collocating {14}
626
DF
.~.~ Tool or surrogate {4}
628
DF
.~.~.~ Cutter or shaper {9}
629
.~.~.~.~ Screw thread
DEFINITION
Classification: 33/629
Screw thread:
(under subclass 628) Subject matter wherein the cutter or shaper forms the spiral of a screw thread.
(1) Note. The threads of this subclass type include, for example, tapered, straight and ACME-type threads.