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INSTRUMENT FOR DRAINAGE OF THE CHEST
US 3,463,159 A
Filed
: 02/16/1965
Issued
: 08/26/1969
Est. Priority Date
: 02/16/1965
Status: Expired due to Term
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Current Assignee
Henry J. Heimlich
Original Assignee
Henry J. Heimlich
Inventors
Heimlich, Henry J.
Application Number
US04/433,008
Time in Patent Office
1,652 Days
Field of Search
US Class Current
604/247
CPC Class Codes
A61M 2039/242
designed to open when a pre...
A61M 2039/2426
Slit valve
A61M 25/00
Catheters; Hollow probes di...
A61M 39/24
Check- or non-return valves
F16K 15/147
the closure elements having...
F16K 15/1472
the closure elements being ...
Y10T 137/7882
Having exit lip
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