CA481668A - Electric switch locks for railroads - Google Patents

Electric switch locks for railroads

Info

Publication number
CA481668A
CA481668A CA481668A CA481668DA CA481668A CA 481668 A CA481668 A CA 481668A CA 481668 A CA481668 A CA 481668A CA 481668D A CA481668D A CA 481668DA CA 481668 A CA481668 A CA 481668A
Authority
CA
Canada
Prior art keywords
railroads
electric switch
switch locks
locks
electric
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
CA481668A
Other languages
French (fr)
Inventor
Langdon Andrew
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.)
SPX Corp
Original Assignee
Andrew Langdon
General Railway Signal Co
Publication date
Application granted granted Critical
Publication of CA481668A publication Critical patent/CA481668A/en
Expired legal-status Critical Current

Links

CA481668A Electric switch locks for railroads Expired CA481668A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA481668T

Publications (1)

Publication Number Publication Date
CA481668A true CA481668A (en) 1952-03-11

Family

ID=35621355

Family Applications (1)

Application Number Title Priority Date Filing Date
CA481668A Expired CA481668A (en) Electric switch locks for railroads

Country Status (1)

Country Link
CA (1) CA481668A (en)

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