CA762126A - Status change detection apparatus - Google Patents

Status change detection apparatus

Info

Publication number
CA762126A
CA762126A CA762126A CA762126DA CA762126A CA 762126 A CA762126 A CA 762126A CA 762126 A CA762126 A CA 762126A CA 762126D A CA762126D A CA 762126DA CA 762126 A CA762126 A CA 762126A
Authority
CA
Canada
Prior art keywords
detection apparatus
change detection
status change
status
detection
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
CA762126A
Inventor
E. Stark Donald
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.)
Westinghouse Air Brake Co
Original Assignee
Westinghouse Air Brake Co
Publication date
Application granted granted Critical
Publication of CA762126A publication Critical patent/CA762126A/en
Expired legal-status Critical Current

Links

CA762126A Status change detection apparatus Expired CA762126A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA762126T

Publications (1)

Publication Number Publication Date
CA762126A true CA762126A (en) 1967-06-27

Family

ID=36199249

Family Applications (1)

Application Number Title Priority Date Filing Date
CA762126A Expired CA762126A (en) Status change detection apparatus

Country Status (1)

Country Link
CA (1) CA762126A (en)

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