PugJesus@lemmy.worldM to HistoryPorn@lemmy.worldEnglish · 1 year agoThe ISOLATOR, invention from 1925lemmy.worldimagemessage-square29fedilinkarrow-up1281arrow-down15cross-posted to: [email protected]
arrow-up1276arrow-down1imageThe ISOLATOR, invention from 1925lemmy.worldPugJesus@lemmy.worldM to HistoryPorn@lemmy.worldEnglish · 1 year agomessage-square29fedilinkcross-posted to: [email protected]
minus-squareMassahudlinkfedilinkEnglisharrow-up5·1 year agoThe grandfather of noise canceling headphones.
The grandfather of noise canceling headphones.