CA555594A - Perforateur de tuile acoustique - Google Patents

Perforateur de tuile acoustique

Info

Publication number
CA555594A
CA555594A CA555594A CA555594DA CA555594A CA 555594 A CA555594 A CA 555594A CA 555594 A CA555594 A CA 555594A CA 555594D A CA555594D A CA 555594DA CA 555594 A CA555594 A CA 555594A
Authority
CA
Canada
Prior art keywords
acoustical tile
tile drill
drill
acoustical
tile
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
CA555594A
Other languages
English (en)
Inventor
V. Emmons Joseph
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.)
Cleveland Twist Drill Co
Original Assignee
Cleveland Twist Drill Co
Publication date
Application granted granted Critical
Publication of CA555594A publication Critical patent/CA555594A/fr
Expired legal-status Critical Current

Links

CA555594A Perforateur de tuile acoustique Expired CA555594A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA555594T

Publications (1)

Publication Number Publication Date
CA555594A true CA555594A (fr) 1958-04-08

Family

ID=35717009

Family Applications (1)

Application Number Title Priority Date Filing Date
CA555594A Expired CA555594A (fr) Perforateur de tuile acoustique

Country Status (1)

Country Link
CA (1) CA555594A (fr)

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