Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
A FLEXIBLE SHEET MATERIAL HAS A PLURALTY OF PROTUBERANCES ON EACH SURFACE, THE PROTUBERANCES ON ONE SURFACE OF THE SHEET (1) HAVING ON OUTER SURFACE WHICH IS OUTWARDLY CONCAVE AND THE PROTUBERANCES ON THE OTHER SURFACE OF THE SHEET (2) HAVING AN OUTER SURFACE WHICH IS OUTWARDLY CONVEX OR PLANAR.(FIG. 2)
MYPI95002997A1995-10-061995-10-06Flexible sheet material
MY132295A
(en)