US PATENT SUBCLASS 169 / 54
SPECIAL APPLICATIONS

Current as of: June, 1999
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169 /   HD   FIRE EXTINGUISHERS

54SPECIAL APPLICATIONS {9}
55  DF  .~> For railway car heaters
56  DF  .~> Condition responsive control {4}
62  DF  .~> For vehicles
63  DF  .~> For motion picture apparatus
64  DF  .~> For mine
65  DF  .~> For cooking installation
66  DF  .~> For storage tank {2}
69  DF  .~> For oil or gas well
70  DF  .~> With specific extinguishant applying means, or means for providing access to fire

DEFINITION

Classification: 169/54

(under the class definition) Subject matter comprising means for preventing or minimizing damage due to fire in or about a structure or device by treating the fire condition, said means being particularly adapted for use with that specifically named structure or device.

(1) Note. Fire extinguishers claimed in combination with structure or apparatus classifiable elsewhere is found in the class accepting that apparatus.