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John S. Parkinson, James Y. Dunbar and William A. Jack received US Patent No. 2,270,335 on January 20, 1942, filed December 30, 1939. It was assigned to Johns Manville.
The patent's description opens (from the scanned text):
The present invention relates to machinery supports, and more particularly, to improved devices for mounting machinery-in a manner to damp the vibrations created during normal operation.
- Author
- John S. Parkinson; James Y. Dunbar; William A. Jack
- Published by
- US Patent Office
- Series
- US Patent No. 2,270,335
- Date
- January 20, 1942
- Library no.
- ACL Doc 23814 · asbestosclaims.law/library/23814
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 4 pages · 472 KB
Where it was listed
- Asbestos, March 1942, in its patents department (the year's issues)
Cite this document
John S. Parkinson, James Y. Dunbar, William A. Jack. “Vibration Isolator (US Patent 2,270,335, 1942).” January 20, 1942. US Patent No. 2,270,335. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23814. https://asbestosclaims.law/library/23814.
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