Improvements in the Manufacture of Coiled Coil Filaments for Electric Incandescent Lamps [microform article].
Publication details: London : Public Record Office, [n.d] In: Straits settlements [Okt. - Dis. 1935] [microform article]No physical items for this record
PTSL : Koleksi Media
No.2569 [Page 14]
26th Sept. 1935
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