CA221939A - Commutation book - Google Patents

Commutation book

Info

Publication number
CA221939A
CA221939A CA221939A CA221939DA CA221939A CA 221939 A CA221939 A CA 221939A CA 221939 A CA221939 A CA 221939A CA 221939D A CA221939D A CA 221939DA CA 221939 A CA221939 A CA 221939A
Authority
CA
Canada
Prior art keywords
commutation
book
commutation book
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
CA221939A
Other languages
French (fr)
Inventor
E. C. Swann James
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 CA221939A publication Critical patent/CA221939A/en
Expired legal-status Critical Current

Links

CA221939A Commutation book Expired CA221939A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA221939T

Publications (1)

Publication Number Publication Date
CA221939A true CA221939A (en) 1922-08-08

Family

ID=35117541

Family Applications (1)

Application Number Title Priority Date Filing Date
CA221939A Expired CA221939A (en) Commutation book

Country Status (1)

Country Link
CA (1) CA221939A (en)

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