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3489054
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Information
Patent Grant
3489054
References
Source
Patent Number
3,489,054
Date Filed
Not available
Date Issued
Tuesday, January 13, 1970
54 years ago
CPC
F16B21/09 - Releasable fastening devices with a stud engaging a keyhole slot
E04D3/3605 - of roof covering supported directly by the roof structure
US Classifications
411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
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