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406146
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Information
Patent Grant
406146
References
Source
Patent Number
406,146
Date Filed
Not available
Date Issued
Tuesday, July 2, 1889
135 years ago
CPC
B23P13/00 - Making metal objects by operations essentially involving machining but not covered by a single other subclass
Y10T29/49439 - Trap making
Y10T29/49913 - by constricting outer annulus
Y10T29/49917 - by necking in cup or tube wall
Y10T29/49918 - At cup or tube end
US Classifications
029 - Metal working
072 - Metal deforming
285 - Pipe joints or couplings
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