Control mechanism for machines for panning bread and like doughs
作者： Irving M Archer
DOI:
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摘要:
lens.org 参考文章(4)
Krell Joseph, Address-printing machine ,(1936)
Simmon Alfred, Electric control switch ,(1942)
Virgil L Mares, Mechanism for electric switches ,(1943)
Otto William G Holmgren, Locking means for motor-vehicle steering-gear. ,(1917)