PDF document available at: https://www.un.org/development/desa/dpad/wp-content/uploads/sites/45/publication/PB_109_Jun30.pdf In his report to the 59th Commission for ...
These sheets contain drawings and pattern pieces attached to sheets that relate to circular shapes. The patterns are cut from paper and metal. The models include: 1. oblique circular cone, OCCO-PL - ...
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