Title:
Valved catheters
United States Patent 3087492


Inventors:
Chester, May L.
Young, Andrew B.
Application Number:
US7928960A
Publication Date:
04/30/1963
Filing Date:
12/29/1960
Assignee:
Chester, May L.
Young, Andrew B.
Primary Class:
Other Classes:
137/322, 604/920
International Classes:
A61F2/958
View Patent Images:
US Patent References:
2854982Nasopharyngeal tube1958-10-07
2804076Surgical device for patients undergoing a laryngotomy1957-08-27
1826284Dilator1931-10-06
1089805N/A1914-03-10
1051850N/A1913-01-28
0860591N/A1907-07-16
0612724N/A1898-10-18
0604425N/A1898-05-24
0604424N/A1898-05-24
0543400N/A1895-07-23
0525785N/A1894-09-11
0476698N/A1892-06-07
Foreign References:
IT517079B