Difference between revisions of "CPC B64B1/40"
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{{Techtype | {{Techtype | ||
| − | | | + | |Enclosing categories=CPC B64B |
| + | |Subcategories= | ||
| + | |Affiliated concepts=balloons | ||
}} | }} | ||
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| + | This [[CPC]] category covers "conventional balloons of generally spherical shape where the outer cover serves as gas bag, e.g. traditional hot air balloons."<ref>[https://worldwide.espacenet.com/classification#!/CPC=B64B1/40 B64B1/40 elements] listed at [[Espacenet]]</ref><ref name=us>[https://www.uspto.gov/web/patents/classification/cpc/html/defB64B.html#B64B1/40 B64B1/40] listed at [[USPTO]]</ref> | ||
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| + | === References === | ||
| + | <references /> | ||
