بایگانی برچسب: high frequency oxygen therapy

Whereas nonetheless at school he wrote his first article for Sensible Wireless. After he left college on the age of 18, he offered miniature electronic kits by mail order to the hobby market. Sinclair’s Micro Kit was formalised in an exercise e-book dated 19 June 1958, three weeks before his …

مشاهده بیشتر »