Detachable nestable mast steps

Details Detachable nestable mast steps Detachable nestable mast steps

1981-02-17

1983-05-10

Blix, Trygve M.

Ships

Spars

Masts and masting

114363, 2482223, A47F 500

Patent

active

043824161

ABSTRACT:
Mast steps that may be attached to any vertical spar or surface when needed for climbing said spar or surface, and removed and nested for easy storage when not in use.

REFERENCES:
patent: 1140940 (1915-05-01), Bales
patent: 1803016 (1931-04-01), Harsted
patent: 3313509 (1967-04-01), Lockert
patent: 3476344 (1969-11-01), Pace
patent: 3880390 (1975-04-01), Niven
patent: 4274614 (1981-06-01), Worrallo

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