B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/1051, 18/960
B29C 65/56 (2006.01) E06B 3/66 (2006.01)
Patent
CA 1102987
ABSTRACT OF THE DISCLOSURE Double-walled articles comprising a translucent or transparent synthetic resin base element and a translucent or transparent synthetic resin cover element, the said base element having an abutment adapted to contact the periphery of the said cover element, the shape or configuration of the said abutment being such that the said cover element is sprung into engagement with the said abutment to provide a firm connection between the base element and the cover element and also to provide an enclosed space bounded by the said base element and the said cover element.
301569
Hanstein Friedrich
Monch Theodor P.
Schreyer Gunther
Fetherstonhaugh & Co.
Rohm G.m.b.h.
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