US PATENT SUBCLASS 89 / 13.05
.~ Revolving cylinders

Current as of: June, 1999
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89 /   HD   ORDNANCE

9  DF  MACHINE GUNS {3}
13.05.~ Revolving cylinders {1}
13.1  DF  .~.~> Nonparallel bores

DEFINITION

Classification: 89/13.05

Revolving cylinders:

(under subclass 9) Subject matter in which, like the common revolver, the cylinder containing the charges revolves to bring a new load or set of loads to firing position.