Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Inventor
Georg Roth
Otto Pietsch
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Individual
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Individual
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Publication of GB190812391ApublicationCriticalpatent/GB190812391A/en
12,391. Roth, G., and Pietsch, O. June 9. Stoppers, vacuum-closing.-Jars &c. having a groove 2 in the top edge for the reception of a lid 3, which is sealed with paraffin wax &c., are provided either on the lid or in the groove with studs 5 which bear against corresponding inclines 6 on the other member, so that rotation in one direction readily unseats the lid and rotation in the other allows the lid to close. Notches 8 permit the lid to be kept open as during sterilizing without risk of slipping down into a sealing-medium placed in the groove.
GB190812391D1908-06-091908-06-09Improvements in or relating to Vacuum Stoppers for Jars and the like.
ExpiredGB190812391A
(en)