Land vehicles – Ski or skate appliance or attachment – Ski pole
Patent
1979-05-21
1981-07-14
Mitchell, David M.
Land vehicles
Ski or skate appliance or attachment
Ski pole
135 66, A63C 1122
Patent
active
042782740
ABSTRACT:
A warning device for skiers includes an audible sonic generator mounted on a ski pole grip with an actuating button for activating the warning device.
REFERENCES:
patent: 1066540 (1913-07-01), Smithwick
Mitchell David M.
Underwood D. W.
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