[May 10, 1921] Dr. J.S. Parsegan of New York demonstrates his "hair planter" to cure baldness. He says the gun-like mechanism can plant up to 450 hairs into the human scalp.
from /r/100yearsago
1921年5月10日] 纽约的J.S. Parsegan博士展示了他的 "植发器"，以治疗秃头。他说，这种类似于枪的装置可以在人的头皮上种植多达450根头发。