Transportation – Perambulator – invalid chair – or stretcher – Element or attachment
Patent
1997-10-09
1998-12-22
Chin, Kay H.
Transportation
Perambulator, invalid chair, or stretcher
Element or attachment
D21476, D12130, 1212
Patent
active
D04029313
REFERENCES:
patent: D339772 (1993-09-01), Hu
patent: D376393 (1996-12-01), Stroud et al.
patent: D391531 (1998-03-01), Mak
patent: 5454745 (1995-10-01), Spielberger
patent: 5709582 (1998-01-01), O'Donnell
Chin Kay H.
Discovery International Co., Ltd.
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