Material or article handling equipment – Conveying – lifting – or transferring article – Ramp
Patent
1990-06-25
1992-11-17
Burke, Wallace R.
Material or article handling equipment
Conveying, lifting, or transferring article
Ramp
D12317
Patent
active
D03311376
REFERENCES:
patent: D191161 (1961-08-01), Bigelow
patent: D246638 (1977-12-01), Hegedus
patent: D299078 (1988-12-01), Jacobson
patent: 4068770 (1978-01-01), Boehringer
patent: 4260282 (1981-04-01), Dorsey et al.
patent: 4538314 (1985-09-01), Baranowski
patent: 4696250 (1987-09-01), Antonides
patent: 4699247 (1987-10-01), Clarke
Baynham H.
Burke Wallace R.
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