نتایج جستجو برای: washer

تعداد نتایج: 496  

Journal: :Clinical chemistry 1961
H RICHTER

P IPET WASHING has always been a major problem in. a clinical chemistry laboratory. When blood and other body fluids are pipetted the inside of the pipets tends to retain a coating of lipids which is often difficult to remove. On the other hand, the specimens are usually small and utmost accuracy is desired. A pipet which does not drain properly and retains drops of the solution on the inside o...

2003
Malcolm B. Russell

Exactly eighty years ago the founder of a struggling manufacturing company approached executives at the prominent mail order specialist Sears, Roebuck to demonstrate an electric washing machine. Despite the number of electrics marketed since the first Thor appeared in 1908, Sears sold primarily hand-powered machines. Now Louis C. "Lou" Upton sought to list his product. Just hirty years of age, ...

Journal: :Transactions of the Architectural Institute of Japan 1961

Journal: :Iryou kikigaku (The Japanese journal of medical instrumentation) 2013

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