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US2268636A
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Means for connecting metal sheets
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US2264897A
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Method for sheet metal construction
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US2266673A
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Conveyer
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US2221830A
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Riveting device
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US2251389A
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Riveting tool
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US2218805A
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Riveting apparatus
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US2263283A
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Riveting method and apparatus
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US2172827A
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Quick connection for constructional elements
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US2147763A
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Flush or countersunk riveting
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US2147687A
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Apparatus for crosswise riveting and for other striking work
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US1817475A
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Closure for bracelets and the like
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