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Erwin G. Bartel received US Patent No. 1,778,579 on October 14, 1930, filed March 22, 1927. It was assigned to George B German.
The patent's description opens (from the scanned text):
The present invention relates to an attachment for portable drills for use when relining brake bands and similar work, and aims to provide a novel and improved device of this character which may be easily "and con veniently attached to small portable drills for efliciently drilling and countersinking holes in brake linings in alignment with openings-in metallic bands.
- Author
- Erwin G. Bartel
- Published by
- US Patent Office
- Series
- US Patent No. 1,778,579
- Date
- October 14, 1930
- Library no.
- ACL Doc 21860 · asbestosclaims.law/library/21860
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 4 pages · 450 KB
Where it was listed
- Asbestos, November 1930, in its patents department (the year's issues)
Cite this document
Erwin G. Bartel. “Brake Band Drilling Attachment (US Patent 1,778,579, 1930).” October 14, 1930. US Patent No. 1,778,579. US Patent Office. AsbestosClaims.Law Library, ACL Doc 21860. https://asbestosclaims.law/library/21860.
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