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
Robert Benton Vanderburg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ROBERT BENTON VANDERBURG
Original Assignee
ROBERT BENTON VANDERBURG
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Filing date
Publication date
Application filed by ROBERT BENTON VANDERBURGfiledCriticalROBERT BENTON VANDERBURG
Application grantedgrantedCritical
Publication of GB189516091ApublicationCriticalpatent/GB189516091A/en