Movable or removable closures – Combined
Patent
1975-09-08
1977-03-08
Downey, Kenneth
Movable or removable closures
Combined
49 14, 49 33, 49139, 49263, 214 38BA, E06B 700
Patent
active
040105717
ABSTRACT:
A loading dock assembly adapted to be included in a building comprising an automatic control means for opening and closing the loading dock door, automatically raising and lowering the dock ramp to a proper position, as well as automatically turning on and off the dock light.
REFERENCES:
patent: 2186311 (1940-01-01), Weathers
patent: 2758836 (1956-08-01), Purdy
patent: 3578185 (1971-05-01), Black
McGuire Winston B.
Mellyn Charles W.
Downey Kenneth
W. B. McGuire Co., Inc.
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