共 50 条
[22]
Circulating pump with roll bodies
[J].
ZEITSCHRIFT DES VEREINES DEUTSCHER INGENIEURE,
1939, 83
:462-462
[23]
Inexpensive laboratory circulating pump
[J].
INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION,
1941, 13
:0356-0356
[24]
A SIMPLE CENTRIFUGAL CIRCULATING PUMP
[J].
JOURNAL OF SCIENTIFIC INSTRUMENTS,
1958, 35 (02)
:70-70
[25]
AN AUTOMATIC GAS CIRCULATING PUMP
[J].
INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION,
1945, 17 (06)
:404-404
[26]
A glass laboratory pump for gases or liquids
[J].
INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION,
1943, 15
:467-467