CA507444A - Automatic recorders - Google Patents

Automatic recorders

Info

Publication number
CA507444A
CA507444A CA507444A CA507444DA CA507444A CA 507444 A CA507444 A CA 507444A CA 507444 A CA507444 A CA 507444A CA 507444D A CA507444D A CA 507444DA CA 507444 A CA507444 A CA 507444A
Authority
CA
Canada
Prior art keywords
automatic recorders
recorders
automatic
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
CA507444A
Other languages
French (fr)
Inventor
William R. Gracey, Jr.
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.)
Hitachi Rail STS USA Inc
Original Assignee
Union Switch and Signal Inc
Publication date
Application granted granted Critical
Publication of CA507444A publication Critical patent/CA507444A/en
Expired legal-status Critical Current

Links

CA507444A Automatic recorders Expired CA507444A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA507444T

Publications (1)

Publication Number Publication Date
CA507444A true CA507444A (en) 1954-11-16

Family

ID=35653385

Family Applications (1)

Application Number Title Priority Date Filing Date
CA507444A Expired CA507444A (en) Automatic recorders

Country Status (1)

Country Link
CA (1) CA507444A (en)

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