Buckles – buttons – clasps – etc.
Patent
1975-10-28
1977-05-10
Corbin, John K.
Buckles, buttons, clasps, etc.
350293, F21V 3300, G02B 510
Patent
active
040230295
ABSTRACT:
A convex mirror has a frosted non-reflective elongated and horizontal line, approximately midway of the mirror and of a width less than the thickness of the mirror, and a light source is disposed adjacent the reflective surface with a colored filter positioned between the light source and the frosted line whereby a predetermined safe distance is indicated for changing lanes into a position in front of the immediately passed vehicle. In another mirror, safe turning distances are indicated by predetermined lines extending vertically of the convex mirror.
REFERENCES:
patent: 1311253 (1919-07-01), Stern
patent: 1832248 (1931-11-01), Schrader
patent: 1879592 (1932-09-01), Thomas
patent: 2461315 (1949-02-01), Devirgilis
patent: 2749541 (1956-06-01), Whittlesey
patent: 2871754 (1959-02-01), Marble
patent: 2881655 (1959-04-01), Eisenschink
patent: 3521234 (1970-07-01), Davin
patent: 3772795 (1973-11-01), Calvet
Baldwin George H.
Corbin John K.
Henry Jon W.
Yeager Arthur G.
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