US PATENT SUBCLASS 89 / 26
.~ Gas checks

Current as of: June, 1999
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89 /   HD   ORDNANCE

17  DF  BREECH CLOSURES {4}
26.~ Gas checks

DEFINITION

Classification: 89/26

Breech-closures in which the novelty resides in the means for checking the gases from escaping at the breech in those guns which fire loose charges.