| 摘要 |
494,796. Gas - storage cylinders. DEUTSCHE WAFFENUND MUNITIONSFABRIKEN AKT.-GES. Nov. 2, 1937, No. 29951. Convention date, Nov. 17, 1936. [Class 8 (ii)] A gas bottle is formed with a wide neck externally screwed to receive the internal screwthread of a connecting closure member i which is formed with a screw-threaded aperture e to receive the valve body and with a screwed flange f to receive the cap h. The closure member may in addition be connected by welding at the part m, and a packing-ring l may be provided. |
