19th September 1941, Page 34
19th September 1941
Page 34

Page 34, 19th September 1941
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Special-purpose Nut-locking Device
WHILST somewhat limited in its W application, a desi g n of nut-lockin g device shown in patent No. 538,313 is nevertheless in g enious. The patentee is Sulzer Freres S.A.,......