CA446198A - Ultra-sonic ranging device - Google Patents

Ultra-sonic ranging device

Info

Publication number
CA446198A
CA446198A CA446198A CA446198DA CA446198A CA 446198 A CA446198 A CA 446198A CA 446198 A CA446198 A CA 446198A CA 446198D A CA446198D A CA 446198DA CA 446198 A CA446198 A CA 446198A
Authority
CA
Canada
Prior art keywords
ultra
ranging device
sonic ranging
sonic
ranging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA446198A
Other languages
French (fr)
Inventor
H. Bollman John
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Bell Telephone Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA446198A publication Critical patent/CA446198A/en
Expired legal-status Critical Current

Links

CA446198A Ultra-sonic ranging device Expired CA446198A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA446198T

Publications (1)

Publication Number Publication Date
CA446198A true CA446198A (en) 1948-01-13

Family

ID=35563869

Family Applications (1)

Application Number Title Priority Date Filing Date
CA446198A Expired CA446198A (en) Ultra-sonic ranging device

Country Status (1)

Country Link
CA (1) CA446198A (en)

Similar Documents

Publication Publication Date Title
CA446956A (en) Amusement device
CA450922A (en) Heat-interchanging apparatus
CA446198A (en) Ultra-sonic ranging device
CA448759A (en) Gauging device
CA448756A (en) Gauging device
CA446738A (en) Vapour-electric device
CA448986A (en) Suction-blower device
CA450269A (en) Vapour-electric device
CA452007A (en) Vapour-electric device
CA447024A (en) Azimuth-indicating device
CA446744A (en) Vapour-electric device
CA446742A (en) Vapour-electric device
CA449410A (en) Tonsorial device
CA447611A (en) Acoustic device
AU137566B2 (en) Vibrating device
CA451521A (en) Piezo-electric device
CA448120A (en) Carrying device
CA451525A (en) Retaining device
CA449685A (en) Gauging device
CA449668A (en) Gauging device
CA449686A (en) Gauging device
CA448758A (en) Gauging device
CA448757A (en) Gauging device
CA448755A (en) Gauging device
CA448754A (en) Gauging device