Stagelessly adjustable telescopic walking stick with a position

Details Stagelessly adjustable telescopic walking stick with a position Stagelessly adjustable telescopic walking stick with a position

1997-05-30

1998-06-23

Mai, Lanna

Tent, canopy, umbrella, or cane

Canes, sticks, crutches, and walking aids

Crutches

135 75, 403109, 403351, A61H 302

Patent

active

057691045

ABSTRACT:
A stagelessly ajustable telescopic waking stick having a position retaining device is made up of an upper pipe and a lower pipe that are telescopically adjusted so as to permit the walking stick to be extended to any length within a limited range and be firmly retained at any selected length by the position retaining device so as to permit the telescopic walking stick to be suitable to people of various physical sizes.

REFERENCES:
patent: 3259407 (1966-07-01), Welt
patent: 3335735 (1967-08-01), Colegroove et al.
patent: 4076437 (1978-02-01), Mazzolla
patent: 4152086 (1979-05-01), Achenbach et al.
patent: 4231574 (1980-11-01), Williams
patent: 4238164 (1980-12-01), Mazzolla
patent: 4252137 (1981-02-01), Cohen
patent: 4419025 (1983-12-01), Takahashi
patent: 4582079 (1986-04-01), Fields
patent: 4659125 (1987-04-01), Chuan
patent: 4809725 (1989-03-01), Champigny
patent: 4895471 (1990-01-01), Geltz et al.
patent: 5487529 (1996-01-01), Newville

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