Survival apparatus

Details Survival apparatus Survival apparatus

1974-11-18

1976-06-22

Swisher, S. Clement

Signals and indicators

Bells

Gong type

116DIG9, G08B 500

Patent

active

039644278

ABSTRACT:
Apparatus for marking a location which includes a balloon and a bottle of pressurized helium which is selectively connected to the balloon which is in turn secured by a cord which is fed through an indicator as it is released to show the amount of cord that has been released and thereby the height of the balloon.

REFERENCES:
patent: 3002490 (1961-10-01), Murray
patent: 3136066 (1964-06-01), Spinn

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