mikhailovitch, because mikhail kalishnokov designed the rifle, ergo, ‘son of’. ‘ovna’ is daughter of.
Soviet industrial designer and Lieutenant-General Mikhail Timofeyevich Kalashnikov was known by his friends and close associates by the combined familiar name MikTim from the dimunitive nickname from his first name conjoined with his patronymic, Timofeyevich.
There was a post at Free Republic about it a couple of years back.
dear archy,
‘timofeyovich’ ... thanks, i had forgotten the Cyrillic form of ‘Timothy’.