US PATENT SUBCLASS 244 / 150-- .~.~.~ Timing mechanism

US PATENT SUBCLASS 244 / 150
.~.~.~ Timing mechanism

Current as of: June, 1999
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244 /	HD	AERONAUTICS

138 R	DF	SAFETY LOWERING DEVICES {4}
142	DF	.~ Parachutes {7}
147	DF	.~.~ Storage and release {3}
150		.~.~.~ Timing mechanism

DEFINITION

Classification: 244/150

(under subclass 147) Devices for causing parachutes to open at the expiration of some predetermined time.