Stair chair

Details Stair chair Stair chair

1998-04-08

1999-05-04

Chin, Kay H.

Transportation

Perambulator, invalid chair, or stretcher

D12131, D12132, 1212

Patent

active

D04091205

REFERENCES:
patent: 3283839 (1966-11-01), Brown et al.
patent: 4566551 (1986-01-01), Feliz
patent: 4643446 (1987-02-01), Murphy et al.
patent: 4645222 (1987-02-01), Hester

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