Old Inventions
Indoor skis
News fax
Piano for sick people
Bumper to pick up pedestrians
Hat-radio
Sonar for blind people
Vest heated with electricity
Amphibious bicycle
Transportable bridge in times of emergency
Reading glasses to read while lying down
Anti-puncture brush
Stroller radio
Gun camera
Device to walk your dog while driving your car
Roller skates for walking
Boat-bike
Ice skating shoe
Portable sauna
Cage for baby
Laryngophone, placed against the throat to pick up voice vibrations directly without responding to background noise.
Surfboard with motor
Mini television
Robot to pick up the phone
Device for couples to carry their baby
TV-glasses
A 'mew' machine to scare off the mice
Dog catcher
Venetian glasses
