Apparatus and related methods for a container lid include a pull structure affixed to at least one end of a tamper evident tearstrip and positioned in an outer flange of the lid, the pull structure having a portion shaped to receive and engage a manipulator such as at least one finger of a user's hand,...http://www.google.fr/patents/US7134567?utm_source=gb-gplus-shareBrevet US7134567 - Pull tab on tear strip on plastic cover plastic cover, including break tab feature, and related apparatus and methods
Pull tab on tear strip on plastic cover plastic cover, including break tab ...