USD179371S - Combined cannula and valve unit for blood transfusion - Google Patents
Combined cannula and valve unit for blood transfusion Download PDFInfo
- Publication number
- USD179371S USD179371S US D179371 S USD179371 S US D179371S
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- US
- United States
- Prior art keywords
- valve unit
- blood transfusion
- combined cannula
- cannula
- combined
- Prior art date
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- 210000004369 Blood Anatomy 0.000 title description 8
- 239000008280 blood Substances 0.000 title description 8
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Description
United States Patent Des. 179,37 1
Patented Dec. 11, 1956 COMBINED CANNULA AND VALVE UNIT FOR BLOOD TRANSFUSION Courtland H. Barr, Sr., Courtland H. Barr, Jr., and John W. Barr, Los Angeles, Calif.
Application December 27, 1955, Serial No. 39,500
Term of patent 14 years (Cl. D83-1) Figure l is a side elevation of a combined cannula and valve unit for blood transfusion, embodying our new design.
Figure 2 is a front elevation thereof.
Figure 3 is a top plan view thereof.
Figure 4 is a bottom plan view thereof.
Figure 5 is a fragmentary side elevation thereof, with the flexible tube element removed for clarity of illustration.
We claim:
The ornamental design for a combined cannula and valve unit for blood transfusion, substantially as shown.
References Cited in the file of this patent UNITED STATES PATENTS D. 65,900 Cook Nov. 4, 1924 D. 155,000 Eratico Aug. 30, 1949 2,434,282 Mueller Jan. 13, 1948 OTHER REFERENCES American Hospital Supply Catalog #80, recd 1940, page 8.
American Hospital Supply Catalog #100, 1955, page 647, Item A.
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