Lifting jack

Details Lifting jack Lifting jack

1992-04-08

1994-04-05

Chin, Kay H.

Material or article handling equipment

Conveying, lifting, or transferring article

Jack or jackstand

D34 28

Patent

active

D03458431

REFERENCES:
patent: 66170 (1867-06-01), Patterson
patent: 829344 (1906-08-01), Larsen
patent: 2469670 (1949-05-01), Thompson
patent: 2536550 (1951-01-01), Hughes
patent: 2786649 (1957-03-01), Bottorff
patent: 2786650 (1957-03-01), Bottorff
patent: 2910270 (1959-10-01), Schultz
patent: 3081066 (1963-03-01), Murawski
patent: 3426752 (1969-02-01), Laico
patent: 3662994 (1972-05-01), Johns
patent: 4194726 (1980-03-01), Hance
patent: 4640495 (1987-02-01), Parsons
patent: 4846443 (1989-07-01), Collins et al.
patent: 5190265 (1993-03-01), Barry et al.

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