US PATENT SUBCLASS 89 / 171
.~.~.~ Nonrectilinear breech block motion (e.g., tilting rotary)

Current as of: June, 1999
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89 /   HD   ORDNANCE

125  DF  AUTOMATIC {14}
160  DF  .~ Movable barrel (e.g., rotary) {4}
162  DF  .~.~ Rearwardly movable {10}
171.~.~.~ Nonrectilinear breech block motion (e.g., tilting rotary) {1}
172  DF  .~.~.~.~> Rotary and sliding

DEFINITION

Classification: 89/171

(under subclass 162) Guns wherein the breech block motion or one component thereof is nonrectilinear.

(1) Note. Usually the motion is a combined one (e.g., tilting and sliding).