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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 jan 1965 ano - Ham introduced a defined serum-free medium. Cambridge Instruments produced the first commercial scanning electron microscope.

Adicionado na linha do tempo:

Data:

1 jan 1965 ano
Agora
~ 60 years ago