CA574721A - Mailbox signal - Google Patents

Mailbox signal

Info

Publication number
CA574721A
CA574721A CA574721A CA574721DA CA574721A CA 574721 A CA574721 A CA 574721A CA 574721 A CA574721 A CA 574721A CA 574721D A CA574721D A CA 574721DA CA 574721 A CA574721 A CA 574721A
Authority
CA
Canada
Prior art keywords
mailbox signal
mailbox
signal
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
CA574721A
Other languages
French (fr)
Inventor
J. Mary 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 CA574721A publication Critical patent/CA574721A/en
Expired legal-status Critical Current

Links

CA574721A Mailbox signal Expired CA574721A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA574721T

Publications (1)

Publication Number Publication Date
CA574721A true CA574721A (en) 1959-04-28

Family

ID=35750575

Family Applications (1)

Application Number Title Priority Date Filing Date
CA574721A Expired CA574721A (en) Mailbox signal

Country Status (1)

Country Link
CA (1) CA574721A (en)

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