Building units and construction elements – Structure
Patent
1995-04-24
1997-09-02
Clark, Doris
Building units and construction elements
Structure
2503
Patent
active
D03832163
REFERENCES:
patent: D219438 (1970-12-01), Fisher
patent: D231206 (1974-04-01), Spain
patent: D267977 (1983-02-01), Drozd
patent: D327951 (1992-07-01), Anderberg
patent: 2700169 (1955-01-01), Heion
patent: 3377638 (1968-04-01), Seipos
patent: 3581331 (1971-06-01), Fisher et al.
FMT Sales Brochure--The Vehicle Free Ramp admitted prior art--published before Oct. 24, 1994.
"JETWAY" by Wollard Aircraft, P7, Model 500 Dec. 1965.
Clark Doris
FMT International Trade AB
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