"Sonic Tape" measuring device

`Sonic Tape' a device for measuring distances between 2 and 30

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`Sonic Tape' a device for measuring distances between 2 and 30
Science Museum Group
© The Board of Trustees of the Science Museum

`Sonic Tape' a device for measuring distances between 2 and 30 feet by means of an ultrasonic beam. Made by Sonic Tape plc of Maidenhead, England according to Patent No. 2082325 of 1982

Details

Category:
Weighing & Measuring
Object Number:
1992-25
type:
linear measure (electronic)
credit:
Mr Barry Selwyn