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Vacuum ejector for dental debris
US 2,885,782 A
Filed
: 06/11/1956
Issued
: 05/12/1959
Est. Priority Date
: 06/11/1956
Status: Expired due to Term
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Current Assignee
James R. Groves
Original Assignee
James R. Groves
Inventors
Groves, James R.
Application Number
US03/590,572
Time in Patent Office
1,065 Days
Field of Search
US Class Current
433/95
CPC Class Codes
A61C 1/0007
Control devices or systems ...
A61C 1/052
Ducts for supplying driving...
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