CA330139A - Wave signalling system - Google Patents

Wave signalling system

Info

Publication number
CA330139A
CA330139A CA330139A CA330139DA CA330139A CA 330139 A CA330139 A CA 330139A CA 330139 A CA330139 A CA 330139A CA 330139D A CA330139D A CA 330139DA CA 330139 A CA330139 A CA 330139A
Authority
CA
Canada
Prior art keywords
signalling system
wave signalling
wave
signalling
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
CA330139A
Other languages
French (fr)
Inventor
Arthur Steel William
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA330139A publication Critical patent/CA330139A/en
Expired legal-status Critical Current

Links

CA330139A Wave signalling system Expired CA330139A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA330139T

Publications (1)

Publication Number Publication Date
CA330139A true CA330139A (en) 1933-02-14

Family

ID=35292508

Family Applications (1)

Application Number Title Priority Date Filing Date
CA330139A Expired CA330139A (en) Wave signalling system

Country Status (1)

Country Link
CA (1) CA330139A (en)

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