CA157717A - Dispositif silencieux pour dactylographes - Google Patents

Dispositif silencieux pour dactylographes

Info

Publication number
CA157717A
CA157717A CA000157717A CA157717DA CA157717A CA 157717 A CA157717 A CA 157717A CA 000157717 A CA000157717 A CA 000157717A CA 157717D A CA157717D A CA 157717DA CA 157717 A CA157717 A CA 157717A
Authority
CA
Canada
Prior art keywords
typewriters
silencing device
silencing
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
CA000157717A
Other languages
English (en)
Inventor
Henry Herbert Yelf
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA157717A publication Critical patent/CA157717A/fr
Expired legal-status Critical Current

Links

CA000157717A 1912-10-31 1912-10-31 Dispositif silencieux pour dactylographes Expired CA157717A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA157717T 1912-10-31

Publications (1)

Publication Number Publication Date
CA157717A true CA157717A (fr) 1914-09-01

Family

ID=45277423

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000157717A Expired CA157717A (fr) 1912-10-31 1912-10-31 Dispositif silencieux pour dactylographes

Country Status (1)

Country Link
CA (1) CA157717A (fr)

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