Adjustable pivotal connection mechanism with locking means
作者： Ernest R Andis
DOI:
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摘要:
lens.org 参考文章(7)
Putnam Harold Russell, Adjustable golf club ,(1950)
De Eldon E Hayner, Stop device for roller skates ,(1949)
Bertram A Wilson, Swivel-jointed wired electrical fixture ,(1948)
Hugh J. Monson, Adjustable side light for automobiles ,(1926)
Greenberg Max, Outrigger and pole holder ,(1964)
Ralph N Longsworth, Adjustable golf-club head ,(1927)
Arthur P Thomas, George Carlson, Band-saw machine ,(1913)