US PATENT SUBCLASS 105 / 67
.~ Spring

Current as of: June, 1999
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105 /   HD   RAILWAY ROLLING STOCK

26.05  DF  LOCOMOTIVES {24}
67.~ Spring {5}
68  DF  .~.~> Elliptic
69  DF  .~.~> Coil
70  DF  .~.~> Torsion
71  DF  .~.~> Spiral
72  DF  .~.~> Gravity

DEFINITION

Classification: 105/67

(under subclass 26.05) Locomotives in which a propelling force is derived from a spring or springs.