A shading device capable of compactly storing a flexible shade on a biased, window-shade type spring roller and controlled to deliver the shade selectively to either its operative shading or compact storage orientation.
申请公布号
US4637447(A)
申请公布日期
1987.01.20
申请号
US19850764805
申请日期
1985.08.12
申请人
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
发明人
FRANK, ARTHUR M.;DERESPINIS, SILVIO F.;MOCKOVCIAK, JR., JOHN
