资讯

IFLScience on MSN5 个月
Why Are They Called "Phillips Head" Screws Anyway?
In fact, the patent for the original Phillips head screw ran out long ago – so unless ... “The Japanese Industrial Standard ...
来自MSN7 个月
Why Is It Called a “Phillips Head” Screwdriver?
The JIS tends to grab onto the driving tool more ... published on mentalfloss.com as Why Is It Called a “Phillips Head” Screwdriver?.