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HYDRAULIC-FILAMENT DENTAL DEVICE
US 3,472,247 A
Filed
: 04/17/1967
Issued
: 10/14/1969
Est. Priority Date
: 04/17/1967
Status: Expired due to Term
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63
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Current Assignee
Adolph W. Borsum
,
William K. Borsum
Original Assignee
Adolph W. Borsum
,
William K. Borsum
Inventors
Borsum, Adolph W.
,
Borsum, William K.
Application Number
US04/632,156
Time in Patent Office
911 Days
Field of Search
US Class Current
132/322
CPC Class Codes
A61C 15/046
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