CA34396A - Speaking tube - Google Patents

Speaking tube

Info

Publication number
CA34396A
CA34396A CA000034396A CA34396DA CA34396A CA 34396 A CA34396 A CA 34396A CA 000034396 A CA000034396 A CA 000034396A CA 34396D A CA34396D A CA 34396DA CA 34396 A CA34396 A CA 34396A
Authority
CA
Canada
Prior art keywords
speaking tube
speaking
tube
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
CA000034396A
Other languages
French (fr)
Inventor
Hahnemann A. Cutmore
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 CA34396A publication Critical patent/CA34396A/en
Expired legal-status Critical Current

Links

CA000034396A Speaking tube Expired CA34396A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA34396T

Publications (1)

Publication Number Publication Date
CA34396A true CA34396A (en) 1890-05-22

Family

ID=45150936

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000034396A Expired CA34396A (en) Speaking tube

Country Status (1)

Country Link
CA (1) CA34396A (en)

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