HEAT-INSULATING PAPER-CONTAINER

PROBLEM TO BE SOLVED: To improve and the heat insulation effect and handlability comparatively economically by a method wherein a plurality of vertical ridges are provided at specified intervals at the outer circumference of the trunk part of a cup main body and the trunk part is covered with a heat...

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Bibliographische Detailangaben
1. Verfasser: OSAKI KATSUHIRO
Format: Patent
Sprache:eng
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